We read in Al-Kāfi - Volume 1 Book 4, Chapter #111, H1194
14ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ سَيْفٍ عَنْ عَمرو بْنِ شِمْرٍ عَنْ جَابِرٍ قَالَ قُلْتُ لابي جعفر (عَلَيْهِ السَّلام) صِفْ لِي نَبِيَّ الله (عَلَيْهِ السَّلام) قَالَ كَانَ نَبِيُّ الله (عَلَيْهِ السَّلام) أَبْيَضَ مُشْرَبَ حُمْرَةٍ أَدْعَجَ الْعَيْنَين مَقْرُونَ الْحَاجِبَيْنِ شَثْنَ الاطْرَافِ كَأَنَّ الذَّهَبَ أُفْرِغَ عَلَى بَرَاثِنِهِ عَظِيم مُشَاشَةِ الْمَنْكِبَيْنِ إِذَا الْتَفَتَ يَلْتَفِت جَمِيعاً مِنْ شِدَّةِ اسْتِرْسَالِهِ سُرْبَتهُ سَائِلَةٌ مِنْ لَبَّتِهِ إِلَى سُرَّتِهِ كَأنهَا وَسطُ الْفِضَّةِ الْمُصَفَّاةِ وَكَأَنَّ عنقَهُ إِلى كَاهِلِهِ إِبْرِيقُ فِضَّةٍ يَكَادُ أَنْفُهُ إِذا شَربَ أَنْ يَرِدَ الْمَاءَ وَإِذَا مَشَى تَكَفَّأَ كَأَنَّهُ يَنْزِلُ فِي صَبَبٍ لَم يُرَ مِثْل نَبِيِ الله قَبْلَهُ وَلا بَعْدَهُ (صَلَّى اللهُ عَلَيْهِ وَآلِه )

14. A number of our people have narrated from Ahmad ibn Muhammad from Ali ibn Sayf from ‘Amr ibn Shimr from Jabir (Al Ju’fi) who has said the following: “Once I asked Abu Ja‘far (AS), ‘Describe to me the Prophet (SAW) of Allah.’ The Imam (AS) said, “The Holy Prophet (SAW) had a white reddish complexion, large sharp black and white eyes, the eyebrows almost joined, chubby hands and feet as if gold molded as to the form of his fingers and toes and with manifest shoulder bones. When he would turn to a person he would do so with the whole of his body, due to kind and tender heartidness. A line of hair extended from the front cavity of his neck down to his bellybutton as if it was a clear and pure silver line. His neck was tall and clear, his nose would almost touch the water when he wanted to drink and when walking he would somehow lean forwards as if walking on a downward slope. No one similar to him was seen before or after the Holy Prophet (SAW) of Allah.”

We read in Al-Kāfi - Volume 1 Book 4, Chapter #111, H1200 20ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنْ محَمَّدِ بْنِ سِنَانٍ عَنِ ابْنِ مُسْكَانَ عَنْ إِسمَاعِيلَ بْنِ عَمَّارٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلام) قَالَ كَانَ رَسُولُ الله (صَلَّى اللهُ عَلَيْهِ وَآلِه) إِذَا رُئِيَ فِي اللَّيْلَةِ الظَّلْمَاءِ رُئِيَ لَهُ نُورٌ كَأَنَّهُ شِقَّة قمر. 20. A number of our people narrated from Ahmad ibn Muhammad from al-Husayn ibn Sa‘id from Muhammad ibn Sinan from Ibn Muskan from Isma‘il ibn ‘Ammar from Abu ‘Abdallah (AS) who has said the following: “If one looked at the Messenger of Allah in the dark night he could see a light like that from the moon radiating from him.”