Ka'b bin 'Ujrah (RAA) narrated, ‘I was carried to the Prophet ( صلی اللہ علیہ وسلم ) and the lice were falling over my face. He said,“I did not know that your disease is hurting you as much as what I see. Can you sacrifice a sheep?”I said, ‘No.’ He then said.“Fast for three days or feed six poor people, half a Sa’ each.”Agreed upon.