Ibn Abbis (Allah be pleased with him) reported that Mu'awiya b. Abu Safyin had told him:I clipped the hair (from the head of) Allah's Messenger (may peace he upon him) with a clipper while he was at al-Marwa, or I saw him getting his hair clipped with a clipper as he was at al-Marwa
Hadith No. 3022
Sahih Muslim