The idolaters have no right to visit the mosques of Allah while bearing witness to unbelief against themselves, these it is whose doings are null, and in the fire shall they abide.

Those who were left behind were glad on account of their sitting behind Allah's Messenger and they were averse from striving m Allah's way with their property and their persons, and said: Do not go forth in the heat. Say: The fire of hell is much severe in heat. Would that they understood (it).