It is narrated from Hazrat Basheer (may Allah be pleased with him) that he presented himself before the Noble Prophet (peace and blessings be upon him). His name was Zahm, but the Noble Prophet (peace and blessings be upon him) changed his name to Basheer.
Hadith Referenceمسند احمد / مسند الأنصار رضي الله عنهم / 21956