حَدَّثَنِي عَنْ مَالِكٍ، عَنْ رَبِيعَةَ بْنِ أَبِي عَبْدِ الرَّحْمَنِ، عَنْ أَنَسِ بْنِ مَالِكٍ، أَنَّهُ سَمِعَهُ يَقُولُ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلم لَيْسَ بِالطَّوِيلِ الْبَائِنِ وَلاَ بِالْقَصِيرِ وَلَيْسَ بِالأَبْيَضِ الأَمْهَقِ وَلاَ بِالآدَمِ وَلاَ بِالْجَعْدِ الْقَطَطِ وَلاَ بِالسَّبِطِ بَعَثَهُ اللَّهُ عَلَى رَأْسِ أَرْبَعِينَ سَنَةً فَأَقَامَ بِمَكَّةَ عَشْرَ سِنِينَ وَبِالْمَدِينَةِ عَشْرَ سِنِينَ وَتَوَفَّاهُ اللَّهُ عَزَّ وَجَلَّ عَلَى رَأْسِ سِتِّينَ سَنَةً وَلَيْسَ فِي رَأْسِهِ وَلِحْيَتِهِ عِشْرُونَ شَعْرَةً بَيْضَاءَ صلى الله عليه وسلم ‏.‏

Yahya related to me from Malik that Rabia ibn Abi Abd ar-Rahmanheard Anas ibn Malik say, "The Messenger of Allah, may Allah bless himand grant him peace, was not excessively tall or short. He was notvery pallid nor dark. He did not have curly hair or lank hair. Allahcommissioned him at the age of forty. He stayed in Makka ten years andat Madina for ten years and Allah the Mighty, the Majestic made himdie when he was sixty. There were not twenty white hairs in his hairor beard, may Allah bless him and grant him peace." Translation Not Available

Book Ref: Muwatta Imam Malik Book 49 Hadith 1674
Web Ref:  Muwatta Imam Malik Book 49 Hadith 1