and when it is said to them spend of that with which allah has provided you those who disbelieve say to those who believe shall we feed those whom if allah willed he would have fed? you are only in a plain error.
وإذا قيل لهم أنفقوا مما رزقكم الله قال الذين كفروا للذين آمنوا أنطعم من لو يشاء الله أطعمه إن أنتم إلا في ضلال مبين