Sahih Muslim · Hadith 3207

وحدثناه ابن المثنى، حدثنا عبد الوهاب، حدثنا عبيد الله، بهذا الإسناد وقال في الحديث فلما كانت الرابعة قال ‏"‏ والمقصرين ‏"‏ ‏.‏

Ubaidullah reported this hadith with the same chain of transmitters and (it is said) that it was on the fourth turn that he (the Holy Prophet) said: (May Allah have mercy upon) those who got their hair clipped."

Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).