ʿUyūn akhbār al-Riḍā - Volume 1 > Various Traditions From al-Ridha (s)
Hadith #2

2 - وَبِهذَا الإسناد عَنِ الرِّضا عَلَيْهِ السَّلامُ، عَن أَبيهِ مُوسَى بْنِ جَعْفَر عَلَيْهِ السَّلامُ قالَ كَانَ قَوْمٌ مِنْ خَوَاصِّ الصَّادِقِ‏ عَلَيْهِ السَّلامُ جُلُوساً بِحَضْرَتِهِ فِي لَيْلَةٍ مُقْمِرَةٍ مُصْحِيَةٍ فَقَالُوا يَا ابْنَ رَسُولِ اللَّهِ مَا أَحْسَنَ أَدِيمَ هَذِهِ السَّمَاءِ وَأَنْوَرَ هَذِهِ النُّجُومَ وَالْكَوَاكِبَ فَقَالَ الصَّادِقُ‏ عَلَيْهِ السَّلامُ إِنَّكُمْ لَتَقُولُونَ هَذَا وَإِنَّ الْمُدَبِّرَاتِ الأَرْبَعَةَ جَبْرَئِيلَ وَمِيكَائِيلَ وَإِسْرَافِيلَ وَمَلَكَالْمَوْتِ‏ عَلَيْهِ السَّلامُ يَنْظُرُونَ إِلَى الأَرْضِ فَيَرَوْنَكُمْ وَإِخْوَانَكُمْ فِي أَقْطَارِ الأَرْضِ وَنُورُكُمْ إِلَى السَّمَاوَاتِ وَإِلَيْهِمْ أَحْسَنُ مِنْ نُورِ هَذِهِ الْكَوَاكِبِ وَإِنَّهُمْ لَيَقُولُونَ كَمَا تَقُولُونَ مَا أَحْسَنَ أَنْوَارَ هَؤُلاءِ الْمُؤْمِنِينَ.

30-2 According to the same documentation, it has been narrated on the authority of Al-Ridha (s), on the authority of his father Musa ibn Ja’far (s), “A group of As-Sadiq’s friends were sitting around the Imam (s) one night, when the moon was shining and the stars were bright. They said, ‘O Son of the Prophet of God! How brilliant is the sky and how bright the stars are?’ As-Sadiq (s) said, ‘That is what you say. However, the four agent angels Gabriel, Michael, Israfil and the Angel of Death lookthat is shining from you which is much brighter than that of these stars. They say the same thing about you that you just said about the stars: How good is the brightness of these believers!’”