General references: Sezgin, Fuat. History of Arab Heritage: Sciences of the Qurʾān and Hadīth, vol. 1/1, p. 316. For his biography, see al-Baghdādī, Tarīkh Baghdad, pp. 334–435. Ibn Khayr, al-Fihrasa, p. 138. al-Dhahabī, Tadhkirat al-Ḥuffāẓ, vol. 2, pp. 653–654. Ibn Ḥajar, Lisān al-Mīzān, vol. 1, pp. 237, 239. Hājī Khalīfa, Kashf al-Ẓunūn, vol. 2, p. 1682. al-Zarkalī, al-Aʿlām, vol. 1, p. 182. (1) Abu al-Qāsim ʿAbd Allāh ibn Muḥammad ibn ʿAbd al-ʿAzīz al-Baghawī was the foremost muhaddith in Iraq of his age. He studied under Yaḥyā ibn Maʿīn, Aḥmad ibn Ḥanbal, and others, and died in 317 AH. He composed Maʿjam al-Ṣaḥāba, transmitted via Abū al-Qāsim ʿĪsā ibn al-Jarāḥ al-Wazīr; a manuscript is preserved at the Dhāhiriya Library in Damascus (Sezgin, History of Arab Heritage, 1/1: 345). See also Brockelmann, History of the Arabic Written Tradition, 3: 222; al-Baghdādī, Tarīkh Baghdad, 10: 111–117; Ibn Abī Yaʿlā, Ṭabaqāt al-Ḥanābila, 1: 190–192 (who notes he authored both the Large and Small Maʿjam); Hājī Khalīfa, Kashf al-Ẓunūn, 2: 1736; al-Zarkalī, al-Aʿlām, 4: 263; Kahāla, Muʿjam al-Muʾallifīn, 6: 126. (2) Abu al-Qāsim Sulaymān ibn Aḥmad ibn Ayyūb al-Lakhmī al-Ṭabarānī (b. 269 AH in Acre; d. 360 AH in Isfahan) was among the leading hadīth scholars. His most famous work is al-Muʿjam al-Kabīr; Brockelmann observes that it includes the hadiths of all the Companions except Abū Hurayra, whose narrations al-Ṭabarānī compiled separately. The Iraqi Ministry of Endowments has published it in twenty volumes (to date), edited by Ḥamdī ʿAbd al-Majīd al-Salafī. His Muʿjam al-Awsat, focusing on the rarer chains of transmission, comprises some 12,000 ḥadīths and was issued by Maktabat al-Maʿārif in Riyadh in ten volumes, edited by Dr. Maḥmūd al-Ṭaḥḥān.