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

Link 2 from the end of the chain
Umara reported:I heard Abd Sa'id al-Khudri as saying that he had heard Allah's Messenger (ﷺ) make (this) observation with a gesture of his five fingers, and then he narrated the hadith as transmitted by 'Uyaina (hadith)