عَن أم سَلمَة قَالَتْ: كَانَ أَحَبُّ الثِّيَابِ إِلَى رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ الْقَمِيصَ. رَوَاهُ التِّرْمِذِيُّ وَأَبُو دَاوُد
Translation
Abu Rimtha at-Taimi said

When I came to the Prophet he was wearing two green garments, his hair was turning grey, but the grey was dyed red. Tirmidhi transmitted it; In a version by Abu Dawud it says he had hanging locks (These locks would hang down as far as the lobes of the ears) stained with henna.