Combing the Hair (Kitab Al-Tarajjul)

Dawud :: Book 33 : Hadith 4169

Narrated Al-Walid ibn Uqbah:

When the Prophet of Allah (peace_be_upon_him) 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.