4.102 - And when you are among them and you establish for them the prayer, a group of them should stand with you (to guard), and let them take their weapons. And when they have prostrated themselves, then let them stand behind you and let the other group come forward which has not prayed yet to pray with you. And let the other group take their precautions and their weapons. Those who have disbelieved wish that you would neglect your weapons and your belongings so they could turn upon you with a single attack. And there is no blame upon you if you are harmed by rain or if you are sick, for putting down your weapons. And take your precautions; indeed, Allah has prepared for the unbelievers a disgraceful torture.