Al-Haytham bin Adi said: Sayyiduna Uthman bin Abi al-As (may Allah be pleased with him); Abu al-As is (his father's) name, and he is Abu al-As bin Bishr bin Abdullah bin Hammam bin Aban bin Bashshar bin Malik bin Hutayt bin Jusham bin Qasiyy bin Munabbih bin Bakr bin Hawazin bin Mansur bin Ikrimah bin Hafsah bin Qays bin Ghaylan bin Mudar.
Imam al-Tabarani recorded it, and its narrators up to al-Haytham are thiqat (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب المناقب / 16212