Quran 9:126 — Ultimatum (Bara'ah)

Do they not see that they suffer from exacting trials every year once or twice? Yet, they consistently fail to repent, and fail to take heed?

[9:125] As for those who harbored doubts in their hearts, it actually added unholiness to their unholiness, and they died as disbelievers.

[9:127] Whenever a sura was revealed, some of them would look at each other as if to say: "Does anyone see you?" Then they left. Thus, GOD has diverted their hearts, for they are people who do not comprehend.