مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 4439
Clothing
Combing the Hair - Section 2
وَعَنْ عَمْرِو بْنِ شُعَيْبٍ عَنْ أَبِيهِ عَنْ جَدِّهِ: أَنَّ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَ يَأْخُذُ مِنْ لِحْيَتِهِ مِنْ عَرْضِهَا وَطُولِهَا. رَوَاهُ التِّرْمِذِيُّ وَقَالَ: هَذَا حَدِيثٌ غَرِيبٌ
‘Amr b. Shu'aib; on his father's authority, said his grandfather told that the Prophet (ﷺ) used to take something off the side and the bottom of his beard. Tirmidhi transmitted it, saying this is a gharib tradition.
Mishkat al-Masabih, 4439ضَعِيفٌ (الألباني)