At-Tawba • EN-ASBAB-AL-NUZUL-BY-AL-WAHIDI
﴿ يَحْذَرُ ٱلْمُنَٰفِقُونَ أَن تُنَزَّلَ عَلَيْهِمْ سُورَةٌۭ تُنَبِّئُهُم بِمَا فِى قُلُوبِهِمْ ۚ قُلِ ٱسْتَهْزِءُوٓا۟ إِنَّ ٱللَّهَ مُخْرِجٌۭ مَّا تَحْذَرُونَ ﴾
“[Some of] the hypocrites dread lest a [new] surah be revealed [in evidence] against them, making them understand what is [really] in their hearts. Say: "Go on mocking! Behold, God will bring to light the very thing that you are dreading!"”
(The hypocrites fear lest a Surah should be revealed concerning them, proclaiming what is in their hearts�) [9:64]. Al-Suddi said: �One hypocrite said: �By Allah, I wish to be flogged one hundred lashes rather than have something revealed about us that exposes us�. Allah, exalted is He, then revealed this verse�. And Mujahid said: �They [the hypocrites] used to say things amongst themselves and then exclaim: �Haply, Allah will not reveal our secret!� �.