Sunan an-Nasa'i, Book 48, Hadith 15 (In-Book) ⓘ
It was narrated that Humaid bin 'Abdur-Rahman Al-Himyari said: "I met a man who accompanied the Prophet [SAW] as Abu Hurairah accompanied him for four years, who said: 'The Messenger of Allah [SAW] forbade us from combing our hair everyday.'"
أَخْبَرَنَا قُتَيْبَةُ، قَالَ حَدَّثَنَا أَبُو عَوَانَةَ، عَنْ دَاوُدَ الأَوْدِيِّ، عَنْ حُمَيْدِ بْنِ عَبْدِ الرَّحْمَنِ الْحِمْيَرِيِّ، قَالَ لَقِيتُ رَجُلاً صَحِبَ النَّبِيَّ صلى الله عليه وسلم كَمَا صَحِبَهُ أَبُو هُرَيْرَةَ أَرْبَعَ سِنِينَ قَالَ نَهَانَا رَسُولُ اللَّهِ صلى الله عليه وسلم أَنْ يَمْتَشِطَ أَحَدُنَا كُلَّ يَوْمٍ .
also referenced under: Hadith 5054 (Reference) & Volume 6, Book 48, Hadith 5057 (DarusSalam)