If only they had been content with what God and His Messenger have given them in the way of spoils and the like and had said ‘Sufficient for us is God; God will give us from His bounty and His Messenger will also give us from other spoils what will suffice us; to God we are suppliants’ that He enrich us the response of the conditional law ‘if only’ is la-kāna khayran lahum ‘it would have been better for them’.