[Machine] Anas ibn Malik was asked, did the Messenger of Allah ﷺ dye his hair? He replied, no, his hair was not gray. It was then said, O Abu Hamzah, what is gray hair? He said, it is when all of you dislike it. Abu Bakr would dye his hair using henna and katam (a type of hair dye), and Umar would dye his hair using henna.
سُئِلَ أَنَسُ بْنُ مَالِكٍ هَلْ خَضَبَ رَسُولُ اللهِ ﷺ؟ قَالَ لَا لَمْ يَشِنْهُ الشَّيْبُ قَالَ فَقِيلَ يَا أَبَا حَمْزَةَ وَشَيْنٌ هُوَ؟ قَالَ يُقَالُ كُلُّكُمْ يَكْرَهُهُ وَخَضَبَ أَبُو بَكْرٍ بِالْحِنَّاءِ وَالْكَتَمِ وَخَضَبَ عُمَرُ بِالْحِنَّاءِ