Narrator names are parsed automatically from the isnad; identity and biographical details are matched from rijal sources (Itqan narrator profiles, muslimscholars.info).

Hadiths in whose chain he appears

Narrated Mus`ab bin Sa`d: I offered prayer beside my father and approximated both my hands and placed them in between the knees. My father told me not to do so and said, "We used to do the same but we were forbidden (by the Prophet) to do it and were ordered to place the hands on the knees."
Chain of narrators: al-Bukhari ← Ebü'l-Velîd ← Shu'bah bin al-Hajjaj ← Ebû Ya'fûr ← Mus'ab b. Sa'd
Narrated Aisha: With the start of the last ten days of Ramadan, the Prophet (ﷺ) used to tighten his waist belt (i.e. work hard) and used to pray all the night, and used to keep his family awake for the prayers.
Narrated Ibn Abi `Aufa: We participated with the Prophet (ﷺ) in six or seven Ghazawat, and we used to eat locusts with him.
Chain of narrators: al-Bukhari ← Ebü'l-Velîd ← Shu'bah bin al-Hajjaj ← Ebû Ya'fûr ← 'Abdullah bin Abi Awfa
Mus'ab b. Sa'd reported:I said prayer by the side of my father and placed my hands between my knees. My father said to me: Place your hands on your knees. I repeated that (the previous act) for the second time, and he struck at my hands and said: We have been forbidden to do so and have been commanded to place our palms on the knees
This hadith has been narrated by Abu Ya'fur with the same chain of transmitters up to these words:We have been forbidden from it and no mention of that has been made what follows it
Chain of narrators (path 1): Muslim ← Khlf bin Hisham bin Th'lb ← Ebü'l-Ahvas ← Ebû Ya'fûr
Chain of narrators (path 2): Muslim ← Muhammad bin Yahya bin Abi 'Umar ← Sufyan bin 'Uyaynah ← Ebû Ya'fûr
A'isha reported:The Messenger of Allah (ﷺ) observed the Witr prayer every night and he completed Witr at the time of dawn
Link 4 from the end of the chain
A'isha (Allah be pleased with her) reported that when the last ten nights began Allah's Messenger (ﷺ) kept awake at night (for prayer and devotion), wakened his family, and prepared himself to observe prayer (with more vigour)
Ibn Abu Aufa reported:We went on seven expeditions with Allah's Messenger (ﷺ) and ate locusts
Chain of narrators: Muslim ← Fdyl bin Husayn bin Talha ← Ebû Avâne ← Ebû Ya'fûr ← 'Abdullah bin Abi Awfa
This hadith has been narrated on the authority of Abu Ya'fur with the same chain of transmitters. Abu Bakr (one of the narrators) said" seven expeditions," whereas Ishaq said" six," and Ibn Umar said" six" or" seven
This hadith is narrated on the authority of Abu Ya'fur with the same chain of transmitters, and he mentioned seven expeditions