Allah's Messenger (may peace'be upon him) observed once or twice: May Allah have mercy upon those who get their heads shaved. And he also said: Upon those too who got their hair clipped.

O Allah, grant pardon to those who got their heads shaved They (Companions of the Holy Prophet) said: Messenger of Allah, (what about those) who get their hair cut? He said: O Allah, grant pardon to those who get their heads shaved. They said: Messenger of Allah, (what about those) who got their hair clipped? He said: O Allah, grant pardon to those who get their heads shaved. They said: Messenger of Allah, (what about those) who get their hair clipped? He said: O Allah, grant pardon to those who get their heads shaved. They said: (What about those) who get their hair clipped? He said: (O Allah, grant pardon to) those who get their hair clipped.

Yahya b. al-Husain reported on the authority of his grandfather that Allah's Apostle (ﷺ) invoked blessing on the occasion of the Farewell Pilgrimage three times for those who got their heads shaved and once for those who got their hair clipped. In the narration transmitted by Waki' there is no mention of the Farewell Pilgrimage.

Ibn Umar reported that Allah's Messenger (ﷺ) got his head shaved on the occasion of the Farewell Pilgrimage.