In the Arabic texts written by Iranians in the early Islamic centuries, there are phrases and verses in Persian that clarify valuable points in the history of the Persian language and literature. By examining these texts, sometimes verses are added to the ancient treasure of Persian literature, and sometimes the influence of Dari Persian in the first centuries is more precisely defined. The discussion in the history of Persian literature will not be very accurate without examining Persian writings of Arabic texts. In this essay, by looking at some ancient Arabic texts, the Farsi writings of the book Adaab al-Fuqara written by Baba Ja'far Abhari are examined. The book was written in the late 4th or early 5th century. Baba Ja'far wrote this work in Hamedan, and in terms of the prevalence of Persian poetry and prose in Persian Iraq, before the time when it is discussed in the history of Persian literature, it is very worthy of attention.
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