18 – Tadhkirat al-Huffāz (Memorial of the Hadith Masters), by al-Dhahabī.

19 – Al-Targhīb wa-l-Tarhīb min al-Hadīth al-Sharīf (Encouragement and Warning from the Noble Hadith), by al-Mundhirī. Edited by Muhammad Mustafā Umāra.

20 – Tasmiyat mā Warada bihi al-Khatīb al-Baghdādī Dimashq min Riwāyatihi (An Account of the Narrations Brought to Damascus by al-Khatīb al-Baghdādī), by Muhammad ibn Ahmad al-Mālikī al-Andalusī. Published by Dr. Yūsuf al-Ish in his book Al-Khatīb al-Baghdādī.

21 – Taqrīb al-Tahdhīb (A Concise Refinement), by Ibn Hajar. Edited by Muhammad Awwāma and published in a single volume in Beirut. I also occasionally consulted the two-volume edition by Abd al-Wahhāb Abd al-Latīf.

22 – Al-Tamyīz wa-l-Fasl bayna al-Muttafiq fī al-Khatt wa-l-Nuqt wa-l-Shakl (Distinguishing and Differentiating Names Identical in Script, Dotting, and Vocalization), by Ibn Bātīsh. Edited by Abd al-Hafīz Mansūr. Beirut: al-Dār al-Arabiyya li-l-Kitāb, 1983.

23 – Tanqīh al-Maqāl (Critical Revision of the Narrators), by al-Māmaqānī.

24 – Tahdhīb al-Tahdhīb (The Refinement of the Refinement), by Ibn Hajar al-Asqalānī. Beirut edition.

25 – Tahdhīb al-Kamāl fī Asmā al-Rijāl (The Refinement of al-Kamāl concerning the Names of Narrators), by al-Mizzī. Edited by Bashshār Awwād Marūf. Beirut: Muassasat al-Risāla.

26 – Al-Thiqāt (Trustworthy Narrators), by Ibn Hibbān. Indian edition.

27 – Jāmi al-Ulūm wa-l-Hikam bi-Sharh Khamsīna Hadīthan min Jawāmi al-Kalim (A Compendium of Knowledge and Wisdom: A Commentary on Fifty Hadiths of Concise and Comprehensive Speech), by Ibn Rajab al-Hanbalī. Edited by Muhammad al-Ahmadī Abū al-Nūr. Egyptian edition.

28 – Al-Jarh wa-l-Tadīl (The Discrediting and Accrediting of Narrators), by Ibn Abī Hātim al-Rāzī. Indian edition.

29 – Al-Jawāhir al-Mudiyya fī Tabaqāt al-Hanafiyya (The Luminous Jewels concerning the Biographical Classes of the Hanafīs), by al-Qurashī.

30 – Hilyat al-Awliyā (The Adornment of the Friends of Allah), by Abū Nuaym al-Isfahānī. Egyptian edition.

31 – Khulāsat Tahdhīb al-Kamāl (A Summary of the Refinement of al-Kamāl), by al-Khazrajī. Aleppo edition.

32 – Dāirat al-Maārif al-Islāmiyya (The Encyclopaedia of Islam), by a group of Orientalists. Egyptian edition.

33 – Al-Durar al-Kāmina fī Ayān al-Mia al-Thāmina (Hidden Pearls among the Notable Figures of the Eighth Century), by Ibn Hajar al-Asqalānī.

34 – Al-Durr al-Manthūr fī al-Tafsīr bi-l-Mathūr (Scattered Pearls: Quranic Exegesis Based on Transmitted Reports), by al-Suyūtī. Al-Maymaniyya edition.

35 – Duwal al-Islām (The Islamic Dynasties), by al-Dhahabī. Indian edition.

36 – Dīwān al-Islām (The Register of Islam), by Muhammad ibn Abd al-Rahmān al-Ghazzī. Dār al-Kutub al-Ilmiyya edition.

37 – Dhayl al-Ibar (Supplement to Al-Ibar), by al-Dhahabī.