Abū Sa‘īd al-Kharrāz, also known as "the Cobbler", was a pseudonym for Aḥmad bin ‘Īsā. He was a native of Baghdad. He had a devotion toward Sufi Islam, and so went to Egypt and resided piously by the Ka‘bah. His profession was that of a shoemaker, and he was a disciple of Muḥammad bin Manṣūr al-Ṭūsī. He associated with Dhū al-Nūn al-Miṣrī, al-Sarī al-Saqaṭī, Abū ‘Ubayd al-Baṣrī, and Bishr bin al-Ḥārith, and derived much spiritual instruction from them.