Sunan Abi Dawud 1838

Nubaih bin Wahb said ‘Umar bin ‘Ubaid Allah bin Ma’mar had a complaint in his eyes. He sent (someone) to Aban bin ‘Uthman - the narrator Sufyan said that he was the chief of pilgrims during the season of Hajj – asking him what he should do with them. He said Apply aloes to them, for I heard ‘Uthaman narrating this on the authority of the Apostle of Allaah(ﷺ)