The Quran, verse 39:53
قُلْ يَا عِبَادِيَ الَّذِينَ أَسْرَفُوا عَلَى أَنْفُسِهِمْ لَا تَقْنَطُوا مِنْ رَحْمَةِ اللَّهِ إِنَّ اللَّهَ يَغْفِرُ الذُّنُوبَ جَمِيعًا إِنَّهُ هُوَ الْغَفُورُ الرَّحِيمُ
Say: O My servants who have transgressed against themselves, never despair of God’s mercy, for God forgives all sins. Indeed, He is the Forgiving, the Merciful.
Source: tawakul, via IslamicArtDB
