Musnad Abu Ya'la al-Mawsili 248:36

Al-Hasan ibn Hammad narrated to us, Al-Muharibi narrated to us, Ash'ath ibn Siwar narrated to us, mentioning from Abu Ishaq, from Jabir ibn Samurah, who said: I saw the Prophet, may Allah bless him and grant him peace, on a moonlit night, and he was wearing a red garment. I was looking at him and at the moon, and he was, in my eyes, more beautiful than the moon.