At-Tahrim · verse 4 of 12
66:4
إِن تَتُوبَآ إِلَى ٱللَّهِ فَقَدْ صَغَتْ قُلُوبُكُمَا ۖ وَإِن تَظَٰهَرَا عَلَيْهِ فَإِنَّ ٱللَّهَ هُوَ مَوْلَىٰهُ وَجِبْرِيلُ وَصَٰلِحُ ٱلْمُؤْمِنِينَ ۖ وَٱلْمَلَٰٓئِكَةُ بَعْدَ ذَٰلِكَ ظَهِيرٌ ﴿4﴾
If ye twain turn unto Allah repentant, (ye have cause to do so) for your hearts desired (the ban); and if ye aid one another against him (Muhammad) then lo! Allah, even He, is his Protecting Friend, and Gabriel and the righteous among the believers; and furthermore the angels are his helpers.
66:4 · At-Tahrim · juz 28 · page 560 · tafsir at quran.com
66:3 · the whole surah · 66:5