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