Jami` at-Tirmidhi, Volume 6, Book 46, Hadith 3623 (DarusSalam) ⓘ

Narrated Anas bin Malik: "The Messenger of Allah was not very tall nor was he [very] short, nor was he pale white, nor was he brown, nor was the wave of his hair completely curly nor straight. Allah sent him at the beginning of his forties and he stayed in Makkah for ten years, and in Al-Madinah for ten years. And Allah took him at the beginning of his sixties, and there were not more than twenty white hairs on his head or in his beard."

حَدَّثَنَا قُتَيْبَةُ، عَنْ مَالِكِ بْنِ أَنَسٍ، وَحَدَّثَنَا الأَنْصَارِيُّ، حَدَّثَنَا مَعْنٌ، حَدَّثَنَا مَالِكُ بْنُ أَنَسٍ، عَنْ رَبِيعَةَ بْنِ أَبِي عَبْدِ الرَّحْمَنِ، أَنَّهُ سَمِعَ أَنَسَ بْنَ مَالِكٍ، يَقُولُ لَمْ يَكُنْ رَسُولُ اللَّهِ صلى الله عليه وسلم بِالطَّوِيلِ الْبَائِنِ وَلاَ بِالْقَصِيرِ الْمُتَرَدِّدِ وَلاَ بِالأَبْيَضِ الأَمْهَقِ وَلاَ بِالآدَمِ وَلَيْسَ بِالْجَعْدِ الْقَطَطِ وَلاَ بِالسَّبِطِ بَعَثَهُ اللَّهُ عَلَى رَأْسِ أَرْبَعِينَ سَنَةً فَأَقَامَ بِمَكَّةَ عَشْرَ سِنِينَ وَبِالْمَدِينَةِ عَشْرَ سِنِينَ وَتَوَفَّاهُ اللَّهُ عَلَى رَأْسِ سِتِّينَ سَنَةً وَلَيْسَ فِي رَأْسِهِ وَلِحْيَتِهِ عِشْرُونَ شَعْرَةً بَيْضَاءَ ‏.‏ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ ‏.‏