Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: "Indeed, those who brought the slander are a group from among you" means that those who brought the lie against Sayyidah Aishah were four people from among you.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19473
Mujahid said concerning this verse: "Indeed, those who brought the slander are a group from among you" — he said: (It refers to) the people involved in the affair (of the accusation) of Sayyidah Aishah.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19474
Sa'id bin Jubayr said: "Indeed, those who brought the slander" — meaning the lie — "are a group from among you" [Surah An-Nur: 11] — meaning the hypocrite Abdullah bin Ubayy bin Salul, Hassan bin Thabit, Mistah bin Uthathah and Hamnah bint Jahsh.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19475
Qatadah said concerning this verse: "Indeed, those who brought the slander" — meaning the lie — this verse is about the affair of Sayyidah Aishah, the Mother of the Believers, and about what was spread and said about her.
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 19476