And Zuhayr ibn Harb narrated to me, 'Affan narrated to us, Hammam narrated to us, Qatada narrated to us, that Anas informed him that 'Abd al-Rahman ibn 'Awf and al-Zubayr ibn al-'Awwam complained to the Messenger of Allah, peace and blessings be upon him, about lice, and he granted them a concession to wear silk shirts during a campaign in which they took part.