Jami' at-Tirmidhi — Hadith #29188

Abd bin Humaid told us, Abd al-Aziz bin Abi Razmah told us, on the authority of Israel, on the authority of Simak, on the authority of Ikrimah, on the authority of Ibn Abbas, he said A man from Banu Sulaym passed by a group of the Companions of the Messenger of God, may God bless him and grant him peace, and he had some of his sheep with him. He greeted them. They said, “He only greeted you.” To seek refuge from you, so they rose up, killed him, and took his sheep and brought them to the Messenger of God, may God bless him and grant him peace. Then God Almighty revealed (O you who “Believe. When you strike in the cause of God, then investigate and do not say to him who extends his greetings to you, ‘You are not a believer.’” Abu Issa said. This is a good hadith. On the authority of Usama bin Zayd.