And when you are among them and keep up the prayer for them, let a party of them stand up with you (for prayers), and let them take their arms; then when the others have prostrated themselves let them stand behind you. And let the other party who has not prayed come forward and pray with you and let them take their precautions and their arms. Those who disbelieve desire that you may be careless of your arms and your armour, so that they may then turn upon you with a sudden attack. And there is no sin on you, if you are annoyed with rain or if you are sick that you may lay down your arms. And take your precautions; surely Allah has prepared a disgraceful torment for the disbelievers.
And when you have completed the prayer, remember Allah standing, sitting, or lying (down) on your sides; but when you are in safety, keep up the prayer in congregation; surely the prayer is enjoined on the believers at fixed hours as an obligation.
And do not relent in pursuit of the people (who are your enemy), if you suffer pain, then surely they also suffer pain as you suffer pain, and you hope from Allah what they do not hope; and Allah is All-Knowing, All-Wise.
Surely, We have sent down to you the Book with the truth that you may judge between people by means of that which Allah has shown you; and so do not be with the treacherous.