Sunan Abi Dawud 1979
سنن أبي داود#1979SahihNarrated 'Abd Allah b. 'Umar:That the Messenger of Allah (ﷺ) said: O Allah, have mercy on those who have themselves shaved. The people said: Messenger of Allah, and those who have clipped their hair. He again said: O Allah, have mercy on those who have themselves shaved. The people said: Messenger of Allah, those who have clipped their hair. He said: and those who clip their hair
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (1727) Sahih Muslim (1301)
In-book reference: 11:259