Musnad Ahmad

Sayyiduna ‘Adi bin Hatim says that I came to Sayyiduna ‘Umar (may Allah be pleased with him) along with some people from my tribe. He gave two thousand to a man from Banu Tayy, but turned away from me. I came before him, yet he turned away. I approached from the side of his face, but still he turned away. Seeing this, I said, “O Commander of the Faithful! Do you recognize me?” Sayyiduna ‘Umar (may Allah be pleased with him) began to laugh, then lay down on his back and said, “Yes! By Allah, I know you. When they were disbelievers, you accepted Islam. When they turned their backs, you turned towards (Islam). When they broke their promises, you fulfilled your pledge. And the very first charity wealth that made the faces of the Prophet (peace and blessings be upon him) and the noble Companions (may Allah be pleased with them) brighten was the wealth that came from Banu Tayy, which you yourself brought.” After this, Sayyiduna ‘Umar (may Allah be pleased with him), apologizing to him, said, “I have given wealth to those whom poverty and hardship have weakened, and these people are the chiefs of their respective tribes, because they bear the responsibility of representing the rights of their people.”