Quran 9:109 — Ultimatum (Bara'ah)

Is one who establishes his building on the basis of reverencing GOD and to gain His approval better, or one who establishes his building on the brink of a crumbling cliff, that falls down with him into the fire of Hell? GOD does not guide the transgressing people.

[9:108] You shall never pray in such a masjid. A masjid that is established on the basis of righteousness from the first day is more worthy of your praying therein. In it, there are people who love to be purified. GOD loves those who purify themselves.

[9:110] Such a building that they have established remains a source of doubt in their hearts, until their hearts are stilled. GOD is Omniscient, Most Wise.