(1) See: Tahdhib al-tahdhib 2:385–86. (2) See: Tahdhib al-tahdhib 2:385–86. (3) See: Tahdhib al-tahdhib 2:385–86. (4) Yaqub ibn Shaybah ibn al-Salt ibn Asfur, Abu Yusuf, a freedman of the Sadus tribe, originally from Basra and later resident in Baghdad, was one of the leading hadith authorities and the author of the critical Musnad al-kabir. He was deemed trustworthy (thiqah) and accurate. Born in 182 AH and died in 262 AH. See: Shadharat al-dhahab 2:146; al-Zirikli, al-A‘lam 8:199. (5) See: Tahdhib al-tahdhib 5:385. Ibn Hajar notes that the remark in question is attributed to Yaqub ibn Sufyan. (6) Abd Allah ibn ‘Adi ibn Abd Allah ibn Muhammad ibn Mubarak ibn al-Qattan al-Jurjani, Abu Ahmad, was among the foremost hadith experts. He authored al-Kamil fi ma‘rifat al-du‘afaʼ wa-l-matrukin and other works. Born in 277 AH, he died in 365 AH. See: al-Zirikli, al-A‘lam 4:103; Tadhkirat al-huffaz 2:940, no. 893. (7) See: Tahdhib al-tahdhib 2:385. (8) In MS A the name is written “bin Bisr,” but the correct reading is as given. Muhammad ibn Bishr al-‘Abdi al-Kufi, Abu Abd Allah, was a reliable memoriser and scholar; all six canonical collections transmit his hadith. He belongs to the ninth generation and died in 203 AH. See: Taqrib al-tahdhib 2:147, no. 73; Shadharat al-dhahab 2:7.