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