Surat An-Najm (The Star) - النجم

ٱلَّذِينَ يَجْتَنِبُونَ كَبَٰٓئِرَ ٱلْإِثْمِ وَٱلْفَوَٰحِشَ إِلَّا ٱللَّمَمَ إِنَّ رَبَّكَ وَٰسِعُ ٱلْمَغْفِرَةِ هُوَ أَعْلَمُ بِكُمْ إِذْ أَنشَأَكُم مِّنَ ٱلْأَرْضِ وَإِذْ أَنتُمْ أَجِنَّةٌ فِى بُطُونِ أُمَّهَٰتِكُمْ فَلَا تُزَكُّوٓا۟ أَنفُسَكُمْ هُوَ أَعْلَمُ بِمَنِ ٱتَّقَىٰٓ ﴿٣٢﴾

Those who keep aloof from the great sins and the indecencies but the passing idea; surely your Lord is liberal in forgiving. He knows you best when He brings you forth from the earth and when you are embryos in the wombs of your mothers; therefore do not attribute purity to your souls; He knows him best who guards (against evil).