﴿ إِنَّ ٱلَّذِينَ جَآءُو بِٱلْإِفْكِ عُصْبَةٌۭ مِّنكُمْ ۚ لَا تَحْسَبُوهُ شَرًّۭا لَّكُم ۖ بَلْ هُوَ خَيْرٌۭ لَّكُمْ ۚ لِكُلِّ ٱمْرِئٍۢ مِّنْهُم مَّا ٱكْتَسَبَ مِنَ ٱلْإِثْمِ ۚ وَٱلَّذِى تَوَلَّىٰ كِبْرَهُۥ مِنْهُمْ لَهُۥ عَذَابٌ عَظِيمٌۭ ﴾

“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]!”

If a preacher is really treading the path of Truth, then any false propaganda issued against him in fact proves useful to him, because the Truth is ultimately bound to prevail. And when the reality becomes clear, it becomes even more evident that the preacher is on the right path, so that those wavering on this score enter the realm of certainty. They come to realize that indeed the opponents of God’s envoy have nothing to offer except false allegations and baseless accusations. The main active participant in the campaign to vilify ‘A’ishah was the notorious hypocrite, ‘Abdullah ibn Ubayy. But he was not given any punishment whatsoever. He died a natural death, but severe punishment in the Hereafter was announced for him in the Quran. After the incident mentioned above, ‘Umar suggested to the Prophet Muhammad that he, (‘Abdullah ibn Ubayy), be put to death. The Prophet replied, ‘Oh, ‘Umar! What would happen if people started saying that Muhammad killed his own Companions?’ We gather from this that policy considerations sometimes warrant even major criminals being spared the punishment they deserve in this world, leaving their ultimate fate to be decided in the Hereafter.