(7) باب التَّرَجُّلِ غِبًّا
It was narrated that Al-Hasan and Muhammad said:
"Combing one's hair (should be done) every other day." (RU)
Reference (RU): Sunan an-Nasa'i 5057 (RU)
In-book reference (RU): Book 48, Hadith 18 (RU)
English translation (RU): Vol. 6, Book 48, Hadith 5060 (RU)