Not graded
Mishkat al-Masabih 4448
Narrator:Abdullāh ibn Mughaffal
وَعَن عبد الله بن مغفَّل قَالَ: نَهَى رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنِ التَّرَجُّلِ إِلَّا غِبًّا. رَوَاهُ التِّرْمِذِيُّ وَأَبُو دَاوُد وَالنَّسَائِيّ
‘Abdallah b. Mughaffal said God’s messenger forbade combing the hair except every second day. Tirmidhi, Abu Dawud and Nasa'i transmitted it.
Cited in Mishkat al-Masabih (No. 4448).