Sura al-Najm 53:26

وَكَم مِّن مَّلَكٍ فِى ٱلسَّمَٰوَٰتِ لَا تُغْنِى شَفَٰعَتُهُمْ شَيْـًٔا إِلَّا مِنۢ بَعْدِ أَن يَأْذَنَ ٱللَّـهُ لِمَن يَشَآءُ وَيَرْضَىٰٓ

wa-kam min malakin fī l-samāwāti lā tughnī shafāʿatuhum shayʾan illā min baʿdi an yadhana allāhu li-man yashāʾu wa-yarḍā

How many-so-ever be the angels in the heavens, their intercession will avail nothing except after Allah has given leave for whom He pleases and that he is acceptable to Him.