"I have not seen anyone with hair past his shoulders in a red Hullah more handsome than the Messenger of Allah (ﷺ). He had hair that would flow on his shoulders, having broad shoulders, not too short and not too tall."
Jami` at-Tirmidhi Book 49, Hadith 31
← Previous Hadith that Al-Harith bin Hisham asked the Prophet (ﷺ): 'How does the Revelation come to you?' The Messenger of Allah (ﷺ) said: 'Sometimes it comes to me like the ringing of a bell and that is the hardest upon me, and sometimes the angel will appear to me like a man, and he will speak to me such that I understand what he says.'" 'Aishah said: "I saw the Messenger of Allah (ﷺ) while the Revelation was descending upon him on an extremely cold day. Then it ceased and his forehead was flooded with sweat."

Jami` at-Tirmidhi Book 49, Hadith 30 Next Hadith → "A man asked Al-Bara: 'Was the face of the Messenger of Allah (ﷺ) like a sword?' He said: 'No, like the moon.'"

Jami` at-Tirmidhi Book 49, Hadith 32