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.
tabarani:657ʿAlī b. al-Mubārak al-Ṣanʿānī > Ismāʿīl b. Abū Ūways > Thābit b. Qays

[Machine] I saw Anas ibn Malik with white hair and beard, dyeing his hair with henna.  

الطبراني:٦٥٧حَدَّثَنَا عَلِيُّ بْنُ الْمُبَارَكِ الصَّنْعَانِيُّ ثنا إِسْمَاعِيلُ بْنُ أَبِي أُوَيْسٍ ثنا ثَابِتُ بْنُ قَيْسٍ قَالَ

«رَأَيْتُ أَنَسَ بْنَ مَالِكٍ أَبْيَضَ الرَّأْسِ وَاللِّحْيَةِ يَصْبُغُ رَأْسَهُ بِالْحِنَّاءِ»