What is the ruling on leaving a mosque where it is said, "Allah and the Prophet are sufficient for me against every oppressor and aggressor," and moving to pray in a shack made of palm fronds and wood?

One must believe that Allah alone is sufficient, for Allah Almighty says: (Is Allah not sufficient for His servant?) and His saying: (And they said: "Allah is sufficient for us; Allah will give us of His bounty, and [so will] His Messenger.") Thus, reliance is on Allah alone. If the Imam says: "Allah and the Prophet are sufficient against every oppressor," then he is mistaken, and it is obligatory to advise him to clarify the truth. If he insists on his falsehood, then one should not pray behind him. There is no harm in praying in another place, such as a mosque made of palm branches and wood.