`Abd al-Muttalib b. Rabi'a said: Once when I was with God's messenger, al-`Abbas came in angrily, and when he asked him what was making him angry he said, "What is wrong between us and Quraish? When they meet one another, they do so with cheerful faces, but when they met us they act differently." God's messenger became so angry that he was red in the face, and he then said, "By Him in whose hand my soul is, faith will not enter a man's heart till be loves you for God's sake and His messenger's." He then said, "O you people, he who injures my paternal uncle has injured me, for a man's paternal uncle is the same as his father." Tirmidhi transmitted it. In al-Masabih it is given on the authority of al-Muttalib (There was a man al-Muttalib b. Rabi'a as well as 'Abd al-Muttalib b. Rabi'a, both of whom were companions of the Prophet, but it seems that a mistake has been made in Masabih as-sunna through the omission of `Abd, probably inadvertently.)