Surat Al-Mujaadila (The Pleading Woman) - المجادلة

إِنَّمَا ٱلنَّجْوَىٰ مِنَ ٱلشَّيْطَٰنِ لِيَحْزُنَ ٱلَّذِينَ ءَامَنُوا۟ وَلَيْسَ بِضَآرِّهِمْ شَيْـًٔا إِلَّا بِإِذْنِ ٱللَّهِ وَعَلَى ٱللَّهِ فَلْيَتَوَكَّلِ ٱلْمُؤْمِنُونَ ﴿١٠﴾

Secret counsels are only (the work) of the Shaitan that he may cause to grieve those who believe, and he cannot hurt them in the least except with Allah's permission, and on Allah let the believers rely.