Flourished: probably Seville (Spain), twelfth century. The text of the Iṣlāḥ was later introduced in Egypt by Maimonides who, with one of his pupils, revised the text ca 1185. In Andalusia, Jābir  influenced Ibn Rushd and Biṭrūjī. During the 13th century the text spread in the East: a manuscript of this work, preserved in Berlin, was copied in Damascus in 1229. A summary of the text was also compiled by Quṭb al-Dīn al-Shīrāzī. Jābir’s work also seems to have influenced Hebrew astronomy. There are 2 Hebrew translations of this work, one dating from 1274, by Moshe ben Tibbon, and the second by his nephew Jacob ben Makhir, revised in 1335 by Samuel ben Yehuda of Marseilles. Due to these Hebrew translations and the Latin translation (due to Gerard of Cremona) the text reached a wide readership in  Europe. 