The Quran

إِنَّ الَّذينَ جاءوا بِالإِفكِ عُصبَةٌ مِنكُم ۚ لا تَحسَبوهُ شَرًّا لَكُم ۖ بَل هُوَ خَيرٌ لَكُم ۚ لِكُلِّ امرِئٍ مِنهُم مَا اكتَسَبَ مِنَ الإِثمِ ۚ وَالَّذي تَوَلّىٰ كِبرَهُ مِنهُم لَهُ عَذابٌ عَظيمٌ

(Saheeh International)

Indeed, those who came with falsehood¹ are a group among you. Do not think it bad for you; rather, it is good for you. For every person among them is what [punishment] he has earned from the sin, and he who took upon himself the greater portion thereof² – for him is a great punishment [i.e., Hellfire].

Referring to the incident when the Prophet's wife ‘.’ishah was falsely accused by the hypocrites.
i.e., ‘Abdullāh bin ‘Ubayy, leader of the hypocrites.