Musannaf Ibn Abi Shaybah

Hazrat Muharib bin Dithar (may Allah have mercy on him) narrates that Hazrat Ahnaf bin Qais (may Allah have mercy on him) said: We were sitting at the door of Hazrat Umar (may Allah be pleased with him) when suddenly a slave girl came out to us. One of the people asked her: "Has the Commander of the Faithful had intercourse with you?" She replied: "Indeed, I am not lawful for him." By this, the slave girl meant that she was from the spoils of war (khums). Just then, Hazrat Umar (may Allah be pleased with him) also came out and said: "Do you know how much of this fay’ wealth I have considered lawful for myself? One mount on which I perform Hajj and Umrah, and two sets of clothes—a set for winter and a set for summer—and the ration for the family of Umar, equal to the ration for the family of an average man from the Quraysh, who is neither very wealthy nor very poor."