58:10

Al-Mujaadila 58:10

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

Innaman najwaa minash shaitaani liyahzunal lazeena aamanoo wa laisa bidaaarrihim shai'an illaa bi-iznil laah; wa 'alal laahi falyatawakkalil mu'minoon

Whispering is an act of Satan, one that aims at causing grief to the believers; yet without Allah's leave no harm can be caused to them. So in Allah should the believers put all their trust.