Allâh has promised those of you who believe and do deeds of righteousness that surely, He will make them successors (vouchsafed with both spiritual and temporal leadership) on the earth as He made successors (from among) their predecessors, and that He will surely establish for them their Faith which He has approved for them, and that He will surely replace their state of fear with a state of security and peace. They will worship Me (alone) and they will not associate anything with Me. And those who show ingratitude for all the favours done to them after that (His promise is fulfilled), it is they who will be reckoned as the worst disobedient.