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