Zayd bin Aslam (may Allah have mercy on him) narrates in a mursal report that the sons of Bukayr came to the Messenger of Allah (peace and blessings be upon him) and said: Marry our sister to so-and-so. He (peace and blessings be upon him) said: "What is your opinion of Bilal (may Allah be pleased with him)?" They repeated their request, and he (peace and blessings be upon him) repeated this three times, so they married her to him. The narrator said: Banu Bukayr were from the Muhajirun, of the tribe of Banu Layth.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب النكاح / 13787