When you are among them, leading them in prayers, let a group of them stand with you carrying their weapons. And when they have done the prostrations, let them withdraw to the rear, then let the other group which has not prayed come and pray with you, taking their precautions and [bearing] their weapons. The faithless are eager that you should be oblivious of your weapons and your baggage, so that they could assault you all at once. But there is no sin upon you, if you are troubled by rain or are sick, to set aside your weapons; but take your precautions. Indeed Allah has prepared for the faithless a humiliating punishment.