Imam Malik's Muwatta, Chapter: Hajj

Yahya related to me from Malik, from Abdullah ibn Abi Bakr, that Abd ar-Rahman ibn Amir ibn Rabia said, "I once saw Uthman ibn Affan in ihram on a hot summer's day at al-Arj,and he had covered his face with a red woollen cloth. Some game-meat was brought to him and he told his companions to eat. They said, 'Will you not eat then?', and he said, 'I am not in the same position as you. It was hunted for my sake.' "