Musnad Ahmad 944
It was narrated from `Ali bin Abi Talib (رضي الله عنه) that He described the Prophet (ﷺ) and said:
He had a large head, a reddish white complexion, a large beard, large joints and large hands and feet. He had a long line of hair running from his chest to his navel and the hair on his head was thick and slightly wavy. He used to lean forward when walking as if he was walking uphill, and he was neither tall nor short, I have never seen anyone like him (ﷺ) before or since. ‘Ali bin Hakeem said in his hadeeth: ‘Ali bin Abi Talib (رضي الله عنه) described the Messenger of Allah (ﷺ) to us. He said: He had a large head and beautiful, slightly wavy hair.
حَدَّثَنَا عَبْد اللَّهِ، حَدَّثَنِي عَلِيُّ بْنُ حَكِيمٍ، وَأَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ وَإِسْمَاعِيلُ ابْنُ بِنْتِ السُّدِّيِّ قَالَ أَنْبَأَنَا شَرِيكٌ، عَنْ عَبْدِ الْمَلِكِ بْنِ عُمَيْرٍ، عَنْ نَافِعِ بْنِ جُبَيْرِ بْنِ مُطْعِمٍ، عَنْ عَلِيِّ بْنِ أَبِي طَالِبٍ، رَضِيَ اللَّهُ عَنْهُ أَنَّهُ وَصَفَ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقَالَ كَانَ عَظِيمَ الْهَامَةِ أَبْيَضَ مُشْرَبًا بِحُمْرَةٍ عَظِيمَ اللِّحْيَةِ ضَخْمَ الْكَرَادِيسِ شَثْنَ الْكَفَّيْنِ وَالْقَدَمَيْنِ طَوِيلَ الْمَسْرُبَةِ كَثِيرَ شَعَرِ الرَّأْسِ رَاجِلَهُ يَتَكَفَّأُ فِي مِشْيَتِهِ كَأَنَّمَا يَنْحَدِرُ فِي صَبَبٍ لَا طَوِيلٌ وَلَا قَصِيرٌ لَمْ أَرَ مِثْلَهُ لَا قَبْلَهُ وَلَا بَعْدَهُ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَقَالَ عَلِيُّ بْنُ حَكِيمٍ فِي حَدِيثِهِ وَوَصَفَ لَنَا عَلِيُّ بْنُ أَبِي طَالِبٍ رَضِيَ اللَّهُ عَنْهُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَقَالَ كَانَ ضَخْمَ الْهَامَةِ حَسَنَ الشَّعَرِ رَجِلَهُ‏.‏