Kharijah bin Zayd bin Thabit (may Allah have mercy on him) says that Sayyidah Umm al-Ala al-Ansariyyah (may Allah be pleased with her) used to say: When the Muhajirun came to Madinah, the Ansar drew lots for their housing, and Sayyiduna Uthman bin Maz'un (may Allah be pleased with him) fell to our lot for housing.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب العتق / 21411