At-Taubah - 9:17

مَا كَانَ لِلْمُشْرِكِينَ أَن يَعْمُرُواْ مَسَاجِدَ الله شَاهِدِينَ عَلَى أَنفُسِهِمْ بِالْكُفْرِ أُوْلَئِكَ حَبِطَتْ أَعْمَالُهُمْ وَفِي النَّارِ هُمْ خَالِدُونَ
[9:17]
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.
It is not for such as join gods with Allah, to visit or maintain the mosques of Allah while they witness against their own souls to infidelity. The works of such bear no fruit: In Fire shall they dwell.
It is not for the idolaters to tend Allah's sanctuaries, bearing witness against themselves of disbelief. As for such, their works are vain and in the Fire they will abide.