From him transmitted al-Ṭastī, ʿUthmān ibn al-Sammāk, Aḥmad ibn Bundār, Abū Shaykh, Abū Bakr al-Ṭalḥī, and others. He passed away in 310 AH.
231 – Abū ʿAwānah Yaʿqūb ibn Isḥāq ibn Ibrāhīm al-Naysābūrī *
The imām, eminent ḥāfiẓ, and tireless itinerant scholar, Abū ʿAwānah Yaʿqūb ibn Isḥāq ibn Ibrāhīm ibn Yazīd, originally from Naysābūr and later of Isfarāyin, author of al-Musnad al-Ṣaḥīḥ (1)—a work he compiled on the pattern of Ṣaḥīḥ Muslim, to which he appended a few additional traditions at the close of some chapters.
He was born sometime after 230 AH.
He heard hadith in the Two Sanctuaries, Syria, Egypt, Yemen, the frontier fortresses, Iraq, al-Jazīrah, Khurāsān, Persia, and Isfahan.
He travelled extensively, excelled in this field, and surpassed his peers.
(*) Tarikh Jurjan, p. 448; Al-Ansab, fol. 33b; Wafayat al-A‘yan, vol. 6, pp. 393–394; Mukhtasar Tabaqat ‘Ulama’ al-Hadith by Ibn ‘Abd al-Hadi, fol. 133/2; Tadhkirat al-Huffaz, vol. 3, pp. 779–780; Al-‘Ibar, vol. 2, p. 165; Duwal al-Islam, vol. 1, p. 190; Mir’at al-Jinan, vol. 2, pp. 269–270; Tabaqat al-Shafi‘iyyah by al-Subki, vol. 3, pp. 487–488; Al-Bidayah wa-l-Nihayah, vol. 11, p. 159; Al-Mukhtasar fi Akhbar al-Bashar, vol. 2, p. 73; Al-Nujum al-Zahira, vol. 3, p. 222; Tabaqat al-Huffaz, p. 327; Shadharāt al-Dhahab, vol. 2, p. 274; Al-Risala al-Mustatrafah, p. 27.
(1) Volumes 1, 2, 4 and 5 have been printed by the Osmania Oriental Publications Bureau, Hyderabad-Deccan, India.
Takhrij, as al-Hafiz al-‘Iraqi defines it, is when a scholar consults a book and re-lists its hadiths with his own chains of transmission, independent of the original author, meeting him at the same teacher or higher up in the isnad.
Al-Hafiz Ibn Hajar adds that the compiler should not leap to a more remote teacher unless he lacks a chain leading to the nearer one.
If the compiler cannot locate certain hadiths, he may omit them entirely or cite them through the isnad used by the original author.
Al-Hafiz Ibn Kathir observes: “Many works have been produced as takhrij of the two Sahihs, offering useful additions and reliable isnads, such as the Sahih of Abu ‘Awana, Abu Bakr al-Isma‘ili, al-Baraqani, Abu Nu‘aym al-Isfahani and others.”