Abu Dawud Book 28, Hadith Number 4183.Abu Dawud Book 28. Combing The Hair Chapter : Lock of hair. Narated By Abdullah ibn Umar : The Prophet (PBUH) saw a boy with part of his head shaved and part left unshaven. He forbade them to do that, saying: Shave it all or leave it all. Related Previous Post Abu Dawud Book 28, Hadith Number 4184. Next Post Abu Dawud Book 28, Hadith Number 4182.