Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) said: "Indeed, those who accuse chaste women" [Surah al-Nur: 23]: what is meant is virtuous women. "Unaware, believing" [Surah al-Nur: 23]: what is meant is women who affirm the Oneness of Allah and His messengers. "Are cursed in this world and the Hereafter, and for them is a great punishment" [Surah al-Nur: 23]: what is meant is that I will expel them from faith.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19535