Tahdhib al-Tahdhib

تهذيب التهذيب

By Ibn Hajar al-Asqalani 852h (1448 CE) 12 volumes

An abridgment and refinement of al-Mizzi's Tahdhib al-Kamal, with additional critical assessments and corrections. Ibn Hajar's work became the standard quick-reference for hadith narrator criticism.