Musnad Ahmad

Narrated to us by Rawh ibn ‘Ubadah, narrated to us by Qurrat ibn Khalid, he said: I heard Yazid ibn ‘Abd Allah ibn al-Shikhkhir, he said: We were sitting in the Mirbad, and a man from the people of the desert came upon us. When we saw him, we said: This seems to be a man not from the people of the city. He said: Yes. And with him was a letter on a piece of leather, and he said (and perhaps he said: on a piece of a bag). He said: This is a letter that the Messenger of Allah, peace and blessings be upon him, wrote for me. In it was: "In the name of Allah, the Most Merciful, the Most Compassionate. This is a letter from Muhammad the Prophet, the Messenger of Allah, to the sons of Zuhayr ibn Uqaysh, and they are a clan from ‘Ukl: If you establish the prayer, give the zakat, separate yourselves from the polytheists, and give the fifth from the spoils, then the share of the Prophet and the chosen portion" (and perhaps he said: "and his chosen portion"), "then you are safe by the security of Allah and the security of His Messenger." And he mentioned the meaning of the hadith of al-Jurayri.