385 AH, in Dhu al-Qaʿdah, Abū ʿAbd Allāh Aḥmad ibn al-Ḥasan ibn ʿAbd al-Jabbār narrated to us, saying: “Abū Zakariyyā Yaḥyā ibn Maʿīn related to me in Shaʿbān 227 AH; ʿAbd al-Ṣamad narrated to us; ʿAbd Allāh ibn al-Muthannā ibn Anas narrated to us; Thumāmah narrated from Anas: (that the Messenger of Allah ﷺ, whenever he uttered a statement, would repeat it three times; and when he came to a people and greeted them with salām, he would greet them three times). This is one of the singular reports found in Ṣaḥīḥ al-Bukhārī (1); he transmitted it from a trustworthy source, from ʿAbd al-Ṣamad ibn ʿAbd al-Wārith.
89 – The Younger Sufi, Aḥmad ibn al-Ḥusayn ibn Isḥāq *
The shaykh, scholar, and ḥadith expert Abū al-Ḥasan Aḥmad ibn al-Ḥusayn ibn Isḥāq al-Baghdādī, known as the Younger Sufi.
He heard ḥadith from Bishr ibn al-Walīd, al-Rabīʿ ibn Thaʿlab the devotee, Abū Bakr ibn Abī Shaybah, Ibn Abī al-Shawārib, Ismāʿīl ibn Mūsā al-Fazārī, Abū Ibrāhīm al-Tarjumānī, Suwayd ibn Saʿīd, Muḥammad ibn Ḥumayd, Abū Kurayb, Mūsā ibn Isḥāq al-Khaṭmī, Dāʾūd ibn Rushayd, ʿAbd al-Aʿlā ibn Ḥammād, and a number of others.
He travelled in pursuit of knowledge and possessed sound expertise.
Among those who narrated from him were Abū Bakr al-Shāfiʿī, Abū Ḥafṣ ʿUmar ibn Muḥammad al-Zayyāt, Abū Aḥmad ibn ʿAdī, and a group of other scholars.