Ibrāhīm b. Sulaymān b. ʿAbdullāh b. Hayyan, al-Hamdānī

13 – Ibrāhīm b. Sulaymān b. ʿAbdullāh b. Hayyan, al-Hamdānī, al-Khazzāz, al-Nihmī, known by the kunya Abū Isḥāq. He narrates from weak narrators a lot, and in his madhhab there is weakness.