Abū 'Uthmān Sa'īd Bin Salām Al-Maghrībī (مغربی) was an Egyptian Sufi scholar of the Kubruwi Order. He was instructed in Sufism by Abū 'Alī al-Katib. He was the teacher of famous Asharite scholars, such as Al-Hakim al-Nishapuri.https://sunnah.org/2008/07/18/5-the-great-ashari-scholars/ He died in 983 (373 AH) and was buried in Neshabur, Iran. He would have been born in 857, so he would have lived to 130 years old.

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