"...So much so that when fear is banished from their (angels') hearts, they (angels) say: 'What is it that your Lord has said?' They say: 'The truth. And He is the Most High, the Most Great.'" (V.34:23).

Sahih al-Bukhari · Book 65 · Hadith 4800

حَدَّثَنَا الْحُمَيْدِيُّ، حَدَّثَنَا سُفْيَانُ، حَدَّثَنَا عَمْرٌو، قَالَ سَمِعْتُ عِكْرِمَةَ، يَقُولُ سَمِعْتُ أَبَا هُرَيْرَةَ، يَقُولُ إِنَّ نَبِيَّ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ إِذَا قَضَى اللَّهُ الأَمْرَ فِي السَّمَاءِ ضَرَبَتِ الْمَلاَئِكَةُ بِأَجْنِحَتِهَا خُضْعَانًا لِقَوْلِهِ كَأَنَّهُ سِلْسِلَةٌ عَلَى صَفْوَانٍ فَإِذَا فُزِّعَ عَنْ قُلُوب…

Narrated Abu Huraira: Allah's Prophet said, "When Allah decrees some order in the heaven, the angels flutter their wings indicating complete surrender to His saying which sounds like chains being dragged on rock. And wh…