They ask you as to what they should spend. Say: Whatever wealth you spend, it is for the parents and the near of kin and the orphans and the needy and the wayfarer, and whatever good you do, Allah surely knows it.

And that He might know the hypocrites; and it was said to them: Come, fight in Allah's way, or defend yourselves. They said: If we knew fighting, we would certainly have followed you. They were on that day much nearer to unbelief than to belief. They say with their mouths what is not in their hearts, and Allah best knows what they conceal.