Abu Mohammad Moshrefoldin Mosleh ebn Abdollah ebn Mosharraf (1209/10–1291/92), better known by his pen name Saadi, was a Persian Sufi poet. He is recognized for the quality of his writings and for the depth of his social and moral thoughts.

Saadi is widely recognized as one of the greatest poets of the classical literary tradition, earning him the nickname "The Master of Speech" or "The Wordsmith" ( ostâd-e soxan) or simply "Master" ( ostâd) among Persian scholars. He has been quoted in the Western traditions as well. His book, Bustan has been ranked as one of the 100 greatest books of all time by The Guardian.

Background and name Abu Mohammad Moshrefoldin Mosleh ebn Abdollah ebn Mosharraf, was of Persian stock and his birth date is uncertain; most scholars consider him to have been born in 1209 or 1210. He was from the city of Shiraz, the provincial capital of the modern day Fars province. Since 1148, the city had been under the rule of the Salghurids, a Persianate dynasty of Turkoman origin.

There is little certainty concerning Saadi's life. Although his own writings, particularly the Bustan and Gulistan, contain many supposedly autobiographical memories, many of these are historically unlikely and are likely made up or cast in the first person for rhetorical effect. Even the earliest references to him in external literature differ in crucial details. Even his real name is uncertain. In sources, his entire name—which consists of his given name, honorific (laqab), agnomen (kunya), and patronymic—is spelled in several differing ways.

The oldest known source to mention his full name is the Talḵiṣ al-majmaʿ al-ādāb fi moʿjam al-alqāb ("Summary of the gathering of refinements concerning the lexicon of honorifics") by Ibn al-Fuwati (died 1323). In a letter dated 1262, he asked Saadi for samples of his Arabic poetry and mentioned his full name as "Muslih al-Din Abu Muhammad Abd-Allah ibn Musharrif." The Iranian scholar Saeed Nafisi favoured this version of his full name. However, the majority of other academics favour the information found in the early manuscripts of Saadi's writings. For instance, the British Iranologist Edward Granville Browne used a text from 1328 to argue that Saadi's full name was "Musharrif al-Din ibn Muslih al-Din Abd-Allah." The majority of subsequent Western academics, including Arthur John Arberry, Jan Rypka, and R. Davis, include "Abd-Allah" in Saadi's patronymic, hence "Abu Abd-Allah Musharrif al-Din Muslih".

The Iranian scholar Zabihollah Safa came to the conclusion that "Muslih" was Saadi's given name and gives his full name as "Abu Muhammad Musharrif al-Din Muslih ibn Abd-Allah ibn Musharrif" based on the preface to one of the oldest surviving compilations of Saadi's collected works, which was created by his fellow townsman Ali ibn Ahmad ibn Abu Bakr Bisotun in 1326. In his book Nafahat al-Uns, the Persian poet Jami (died 1492) provides virtually the same version of the name. This version is also supported by the Iranologist Paul E. Losensky.

His pen name "Saadi" is unambiguous as it appears frequently in his work and acts as his signature in all of his ghazals (amatory poem or ode). However, there are doubts over where it came from. Since two members of the Salghurid dynasty named "Sa'd" ruled for most of Saadi's life, it is likely that the inspiration for the name came from his allegiance to them. The Iranian scholar Abdolhossein Zarrinkoob argues that "Sa'd" or "Banu Sa'd" was also the name of the dynasty itself, hence Saadi's adoption of the name, which demonstrated his loyalty to them.

Biography Education and travels Saadi appears to have received his early education from his father, who also instilled in him lifelong tolerance values. During Saadi's adolescence, his father died, thus leaving him an orphan. Probably around 1223/24, when Sa'd I was briefly deposed by Ghiyath al-Din Pirshah, Saadi, still a teenager, left for Baghdad to continue his education there.

The Iranian scholar Badiozzaman Forouzanfar has found notable parallels between Saadi's teachings and those of Sufi master Shihab al-Din Yahya ibn Habash Suhrawardi, suggesting that they were possibly associated. After completing his studies, Saadi spent a considerable amount of time traveling across the Islamic world. According to first-hand reports, he killed a temple priest in India and was captured by the Crusaders in Syria. According to Losensky; "Despite efforts of scholars such as H. Massé and J. A. Boyle, the effort to re-create an exact itinerary of his travels from his works is misguided." The Iranologist Homa Katouzian examined the data and came to the conclusion that while Saadi was probably in Iraq, Syria, Palestine, and the Arabian Peninsula, it was unlikely that he ever made it as far east as Khorasan, India, or Kashgar.

Return to Shiraz

After nearly 30 years of travel, Saadi returned to Shiraz in 1257, and it appears that he was already well-known and well-respected as a poet. This reputation must have come from the widespread publication of his ghazals. He was keen to restore his connections to the Salghurid dynasty, as evidenced by the speed with which the Bustan and Gulistan were published and their dedications. In a short ode, Saadi says he was inspired to go back to Shiraz by the establishment of peace and prosperity established by the Salghurid ruler Abu Bakr ibn Sa'd (). However, the Salghurid kingdom did not last long after Saadi came back. In 1256/57, Abu Bakr acknowledged the Mongol Empire as his suzerain. Abu Bakr died in 1260, and was succeeded by his eldest son Sa'd II, who died 12 days later. Their death is the subject of various elegies by Saadi. The ruler after this was Sa'd II's 12-year old son Muhammad I ibn Sa'd, who ruled under the supervision of his mother Tarkhan Khatun. Saadi praises both of them in his poems.

The Salghurid dynasty crumbled apart fast due to progressively escalating pressure by the Mongol Empire. Following Muhammad I's death, two of Abu Bakr's nephews were installed on the Salghurid throne. Saadi composed three poems honoring the second of them, Saljuk Shah ibn Salghur, during his brief five-month reign in 1263. Following an impulsive and alcohol-influenced uprising by Saljuk Shah ibn Salghur, the Mongols killed him, formally handing over power to Abish Khatun, Sa'd II's youngest daughter. However, Shiraz was effectively incorporated under Mongol rule through her forced marriage to Möngke Temür, the son of the ruler of the Mongol Ilkhanate, Hulagu Khan (). One of Saadis poems was most likely dedicated to Abish Khatun.

Saadi did not seem to have supported the rise of the Mongol Empire. He composed two qasidas (odes)—one in Arabic and the other in Persian—which grieved over the collapse of the Abbasid caliphate and the death of the last caliph al-Musta'sim () in 1258 during the Mongol attack on Baghdad. In spite of this, Saadi composed a poem in honor of the transition of authority from the Salghurids to the Mongols, and his writings include a number of poems with similar dedications to both the Mongol rulers and their Persian administrators.

Amir Ankyanu, one of the most prominent of these, was the governor of Shiraz from 1268 to 1272. Saadi wrote four qasidas and the prose treatise Dar tarbiat-e yaki az moluk to him. According to Losensky; "None of these works can be considered panegyrics in the usual sense of the word, since they consist mostly of counsel and warnings concerning the proper conduct of rulers." The poems Saadi wrote to Shams al-Din Husayn Alakani, the longtime chief of the chancery in Shiraz, are less cautionary in tone. Shams al-Din Juvayni, the principal finance minister of the Ilkhanate, had assigned him to this position. Along with his brother Ata-Malik Juvayni, the author of Tarikh-i Jahangushay, Shams al-Din Juvayni is honored in some of the most prominent ghazals by Saadi. Saadi's encounter with the two Juvayni brothers and the Ilkhanate ruler Abaqa () at Tabriz, which took place on his way back from a pilgrimage to Mecca, is the subject of two treatises that are frequently found in his collected works (although they were not written by him). A collection of qit'a (monorhyme poetry) poems named the Sahebiya in honor of Shams al-Din Juvayni is also present in a few of Saadi's earlier writings.

Death and burial place A brief qasida to Majd-al-Din Rumi—who worked as an administrative officer in Shiraz under the Ilkhanate ruler Arghun () between 1287 and 1289—is seemingly the last dateable poetry by Saadi. A few years later, Saadi died in Shiraz. 1291–1299 are the dates of death given by early sources. Nafisi came to the conclusion that Saadi died on 9 December 1292 after carefully examining the available data. Safa, drawing from the Tarikh-i guzida written in 1330 by Hamdallah Mustawfi—which is the earliest surviving reliable narrative—as well as other sources from the 14th century, concludes that Saadi died a year earlier, between 25 November and 22 December 1291. The benefit of this earlier date is that it helps explain why chronicles differ on the death date of Saadi. Because Saadi died in the last month of the year, commemorative chronicles may had honored the year of his death or the year after, at the end of the 40-day mourning period. Losensky therefore puts his death date as either 1291 or 1292.

The German cartographer and explorer Carsten Niebuhr visited the tomb of Saadi in 1765, writing that "This building is very dilapidated, and will likely collapse unless some rich Mohammedan takes pity on it and has it repaired." A few years later, the Zand ruler Karim Khan Zand () ordered renovations to the tomb; he had an iron railing created around the gravestone and a brick and plaster structure created over the grave.

Works Bustan and Gulistan

Sa'di's best known works are Bustan (The Orchard) completed in 1257 and Gulistan (The Rose Garden) completed in 1258. Bustan is entirely in verse (epic metre). It consists of stories aptly illustrating the standard virtues recommended to Muslims (justice, liberality, modesty, contentment) and reflections on the behavior of dervishes and their ecstatic practices. Gulistan is mainly in prose and contains stories and personal anecdotes. The text is interspersed with a variety of short poems which contain aphorisms, advice, and humorous reflections, demonstrating Saadi's profound awareness of the absurdity of human existence. The fate of those who depend on the changeable moods of kings is contrasted with the freedom of the dervishes.

Regarding the importance of professions Saadi writes:

O darlings of your fathers, learn the trade because property and riches of the world are not to be relied upon; also silver and gold are an occasion of danger because either a thief may steal them at once or the owner spend them gradually; but a profession is a living fountain and permanent wealth; and although a professional man may lose riches, it does not matter because a profession is itself wealth and wherever you go you will enjoy respect and sit on high places, whereas those who have no trade will glean crumbs and see hardships.

Saadi is also remembered as a panegyrist and lyricist, the author of a number of odes portraying human experience, and also of particular odes such as the lament on the fall of Baghdad after the Mongol invasion in 1258. His lyrics are found in Ghazaliyat (Lyrics) and his odes in Qasa'id (Odes). He is also known for a number of works in Arabic.

In the Bustan, Saadi writes of a man who relates his time in battle with the Mongols:

In Isfahan I had a friend who was warlike, spirited, and shrewd....after long I met him: "O tiger-seizer!" I exclaimed, "what has made thee decrepit like an old fox?"