Al Anfal Ayah 29

يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوٓاْ إِن تَتَّقُواْ ٱللَّهَ يَجْعَل لَّكُمْ فُرْقَانًا وَيُكَفِّرْ عَنكُمْ سَيِّـَٔـاتِكُمْ وَيَغْفِرْ لَكُمْ‌ۗ وَٱللَّهُ ذُو ٱلْفَضْلِ ٱلْعَظِيمِ ٢٩ O believers! If you are mindful of Allah, He will grant you a standard ?to distinguish between right and wrong?, absolve you of your sins, and forgive you. And Allah is the Lord of infinite bounty.