Sa'id bin Jubayr said: "Why, when you heard it" [Surah An-Nur: 12], meaning the accusation against Sayyidah Aishah and Safwan, why did you not reject it as a lie? "Did the believing men and believing women" [Surah An-Nur: 12] — since Zaynab bint Jahsh was among them — "not think well of their own selves" [Surah An-Nur: 12], meaning why did some of them not think well of others, that they had not seen this? "And say: This is an obvious slander" [Surah An-Nur: 12], meaning why did they not say that this accusation is a clear lie?
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19491