Read and reflect on verse 2802 from Surah An-Noor: Verily, numerous among you are those who would falsely accuse others of unchastity: [but, O you who are thus wronged,] deem it not a bad thing for you...
إِنَّ الَّذِينَ جَاءُوا بِالْإِفْكِ عُصْبَةٌ مِنْكُمْ ۚ لَا تَحْسَبُوهُ شَرًّا لَكُمْ ۖ بَلْ هُوَ خَيْرٌ لَكُمْ ۚ لِكُلِّ امْرِئٍ مِنْهُمْ مَا اكْتَسَبَ مِنَ الْإِثْمِ ۚ وَالَّذِي تَوَلَّىٰ كِبْرَهُ مِنْهُمْ لَهُ عَذَابٌ عَظِيمٌ
Verily, numerous among you are those who would falsely accuse others of unchastity: [but, O you who are thus wronged,] deem it not a bad thing for you: nay, it is good for you! [As for the slanderers,] unto every one of them [will be accounted] all that he has earned by [thus] sinning; and awesome suffering awaits any of them who takes it upon himself to enhance this [sin]!