Sunan Ibn Majah 3045

Muḥammad ibn ʿAbd Allāh ibn Numayr narrated to us: Yūnus ibn Bukayr narrated to us: Ibn Isḥāq narrated to us: Ibn Abī Najīḥ narrated to us, from Mujāhid, from Ibn ʿAbbās, who said: It was said, “Messenger of God, why did you invoke blessings for those who shave their heads three times and for those who shorten their hair only once?” He said, “They had no doubts.”