Musannaf Ibn Abi Shaybah 34687 — Banu Tamim

Ibn Sirin (may Allah have mercy on him) said: Sayyiduna Abu Musa (may Allah be pleased with him) wrote to Sayyiduna Umar (may Allah be pleased with him) asking about eighteen suits of horse armour (tajfaf) that had come to him. Sayyiduna Umar (may Allah be pleased with him) wrote to him in reply: "Give this armour to the bravest tribe of the Arabs." The narrator said: So he (may Allah be pleased with him) gave this armour to Banu Rabah, a branch of Banu Tamim.