Ali ibn Hujr reported from Ismail ibn Ibrahim, from Ayyub, from Mujahid, from Abdur Rahman ibn Abu Layla, from Ka’b ibn Ujrah that he said, “Allah’s Messenger ﷺ came to me while I was kindling a fire to cook a vessel and lice were falling down on my forehead. He asked me if they hurt me and I said that they did. He said that I should shave my head and make an offering, or fast for three days, or feed six needy people.” Ayyub did not remember which thing he mentioned first. [Ahmed 18130,Bukhari 1814, Muslim 1201,Abu Dawud 1856, Nisai 2848, Ibn e Majah 307]