"When you are among them, and establish the prayer for them, let a contingent of them stand with you, and let them take their weapons. When they have prostrated themselves, let them be behind you, and let another contingent (which has) not prayed come (forward) and pray with you. Let them take their precautions and their weapons. Those who disbelieve want you to be oblivious of your weapons and your baggage. Then they would launch an attack on you (all at) once. (There is) no blame on you if you lay down your weapons because of the harmful effect of rain on you or (because) you are sick. But take your precautions. Surely God has prepared for the disbelievers a humiliating punishment."