"Some people will dye their hair black like the breasts of pigeons at the end of time, but they will not even smell the fragrance of Paradise."  

أَنَّهُ قَالَ قَوْمٌ يَخْضِبُونَ بِهَذَا السَّوَادِ آخِرَ الزَّمَانِ كَحَوَاصِلِ الْحَمَامِ لاَ يَرِيحُونَ رَائِحَةَ الْجَنَّةِ  

"Abu Quhafah was brought on the Day of the Conquest of Makkah, and his hair and beard were white like the Thaghamah. The Messenger of Allah [SAW] said: 'Change this with something, but avoid black.'"  

أُتِيَ بِأَبِي قُحَافَةَ يَوْمَ فَتْحِ مَكَّةَ وَرَأْسُهُ وَلِحْيَتُهُ كَالثَّغَامَةِ بَيَاضًا فَقَالَ رَسُولُ اللَّهِ ﷺ غَيِّرُوا هَذَا بِشَىْءٍ وَاجْتَنِبُوا السَّوَادَ