Sahih Muslim 1863b

Suwayd ibn Said narrated to me; Ali ibn Mushir narrated to us, from Asim, from Abu Uthman. Mujashi ibn Masud al-Sulami informed me. He said: After the conquest, I brought my brother Abu Mabadh to the Messenger of Allah, peace and blessings be upon him, and said, “Messenger of Allah, accept his pledge for migration.” He said, “Migration has passed for those who undertook it.” I asked, “Then for what should he pledge?” He replied, “For Islam, striving, and goodness.” Abu Uthman said: I met Abu Mabadh and told him what Mujashi had said, and he said, “He spoke truthfully.”