Kaab bin Ujrah said I had lice in my head when I accompanied the Messenger of Allah ﷺ in the year of Al Hudaibiyyah so much so that I feared about my eyesight. So Allaah, the exalted revealed these verses about me. “And whoever among you is sick or hath an aliment of the head. ” The Messenger of Allah ﷺ called me and said “Shave your head and fast three days or give a faraq of raisins to six poor men or sacrifice a goat. So, I shaved my head and sacrificed.

Kaab bin Ujrah said that the Messenger of Allah ﷺ came upon him (during their stay) at Al Hudaibiyyah. He asked do the insects of your head (lice) annoy you? He said Yes. The Prophet ﷺ said Shave your head, then sacrifice a sheep as offering or fast three days or give three sa’s of dates to six poor people.

Kaab bin Ujrah said that the Messenger of Allah ﷺ said to him, If you like sacrifice an animal or if you like fast three days or if you like give three sa’s of dates to six poor people.

Narrated Kab ibn Ujrah: The Messenger of Allah ﷺ came upon him (during their stay) at al-Hudaybiyyah. He then narrated the rest of the tradition. This version adds: "He asked: Do you have a sacrificial animal? He replied: No. He then said: Fast three days or give three sa's of dates to six poor people, giving one sa' to every two persons. "