Title: al-Muʻjam al-mufahras li-alfāẓ aḥādīth al-kutub al-arbaʻah
Subjects: Concordances, Hadith (Shiites), Early works to 1800
People: Muḥammad ibn Yaʻqūb Kulaynī (-941?), Muḥammad ibn ʻAlī Ibn Bābawayh al-Qummī (918 or 919-991 or 992), Muḥammad ibn al-Ḥasan Ṭūsī (995-1067?)