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
tabarani:8407 – ʿAbdullāh b. Muḥammad b. Saʿīd b. Abū Maryam > Muḥammad b. Yūsuf al-Firyābī > Sufyān > Abū Isḥāq > Hubayrah b. Yarīm

[Machine] Ibn Mas'ud used to wash his head and leave his hair behind his ears.  

الطبراني:٨٤٠٧ – حَدَّثَنَا عَبْدُ اللهِ بْنُ مُحَمَّدِ بْنِ سَعِيدِ بْنِ أَبِي مَرْيَمَ ثنا مُحَمَّدُ بْنُ يُوسُفَ الْفِرْيَابِيُّ ثنا سُفْيَانُ عَنْ أَبِي إِسْحَاقَ عَنْ هُبَيْرَةَ بْنِ يَرِيمَ قَالَ

«كَانَ ابْنُ مَسْعُودٍ يَغْسِلُ رَأْسَهُ ثُمَّ يَتْرُكُ شَعْرَهُ مِنْ وَرَاءِ أُذُنَيْهِ»