(1) باب النَّهْىِ عَنْ كَثِيرٍ، مِنَ الإِرْفَاهِ
Narrated Abdullah ibn Mughaffal:
The Messenger of Allah (ﷺ) forbade combing the hair except every second day. (DE)
Reference (DE): Sunan Abi Dawud 4159 (DE)
In-book reference (DE): Book 35, Hadith 1 (DE)
English translation (DE): Book 34, Hadith 4147 (DE)