Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
abudawud:4163 – Sulaymān b. Dāwud al-Mahrī > Ibn Wahb > Ibn Abū al-Zinād > Suhayl b. Abū Ṣāliḥ from his father > Abū Hurayrah

The Prophet ﷺ said: He who has hair should honour it.  

أبو داود:٤١٦٣ – حَدَّثَنَا سُلَيْمَانُ بْنُ دَاوُدَ الْمَهْرِيُّ أَخْبَرَنَا ابْنُ وَهْبٍ حَدَّثَنِي ابْنُ أَبِي الزِّنَادِ عَنْ سُهَيْلِ بْنِ أَبِي صَالِحٍ عَنْ أَبِيهِ عَنْ أَبِي هُرَيْرَةَ

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَنْ كَانَ لَهُ شَعْرٌ فَلْيُكْرِمْهُ  

See similar narrations below:

Collected by Suyūṭī