Surah Al-Imran, ayah 159

3:159

فَبِمَا رَحۡمَةٖ مِّنَ ٱللَّهِ لِنتَ لَهُمۡۖ وَلَوۡ كُنتَ فَظًّا غَلِيظَ ٱلۡقَلۡبِ لَٱنفَضُّواْ مِنۡ حَوۡلِكَۖ فَٱعۡفُ عَنۡهُمۡ وَٱسۡتَغۡفِرۡ لَهُمۡ وَشَاوِرۡهُمۡ فِي ٱلۡأَمۡرِۖ فَإِذَا عَزَمۡتَ فَتَوَكَّلۡ عَلَى ٱللَّهِۚ إِنَّ ٱللَّهَ يُحِبُّ ٱلۡمُتَوَكِّلِينَ ١٥٩

Fabimā rahmatim minallāhi linta lahum walaw kunta fazzan ghalīzal-qalbi lanfaddū min hawlika fa'fu 'anhum wastaghfir lahum washāwirhum fil-amri fa idhā 'azamta fatawakkal 'alallāhi innallāha yuhibbul-mutawakkilīn

So by mercy from Allāh, [O Muḥammad], you were lenient with them. And if you had been rude [in speech] and harsh in heart, they would have disbanded from about you. So pardon them and ask forgiveness for them and consult them in the matter. And when you have decided, then rely upon Allāh. Indeed, Allāh loves those who rely [upon Him].