Yahya related to me from Malik from Ibn Shihab from Safwan ibnAbdullah ibn Safwan that it was said to Safwan ibn Umayya, "Whoeverdoes not do hijra is ruined." So Safwan ibn Umayya went to Madina andslept in the mosque with his cloak as a pillow. A thief came and tookhis cloak and Safwan grabbed hold of the thief and brought him to theMessenger of Allah, may Allah bless him and grant him peace. TheMessenger of Allah, may Allah bless him and grant him peace, said tohim, "Did you steal this cloak?" He said, "Yes." So the Messenger ofAllah, may Allah bless him and grant him peace, ordered that his handbe cut off. Safwan said to him, "I did not intend this. It is his assadaqa." The Messenger of Allah, may Allah bless him and grant himpeace, said, "Why didn't you do it before bringing him to me?"
USC-MSA web (English) reference: Book 41, Hadith 28
Arabic reference: Book 41, Hadith 1532