Abu Dawud
Combing The Hair
Book Number: 028 / Hadith Number: 4169
Narated By Al-Walid ibn Uqbah : When the Prophet of Allah (pbuh) conquered Makkah. The people of Makkah began to bring their boys and he would invoke a blessing on them and rub their heads. I was brought, but as I had been perfumed with khaluq, he did not touch me because of the khaluq.