Qatadah said concerning this verse: "Indeed, those who accuse chaste, unaware, believing women are cursed in this world and the Hereafter, and for them is a great punishment" [Surah al-Nur: 23], he said: It was revealed concerning the matter of Sayyidah Aishah (may Allah be pleased with her).
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19534