When you are on a journey, it is no sin to shorten your prayers if you are afraid of the mischief of the unbelievers. The unbelievers have always been your sworn enemies 101 When you are among the believers and lead them in prayer, let only part of them stand up along with you, armed with their weapons. After they have prostrated themselves, let them withdraw to the rear to stand guard and then let another party, who have not yet prayed, come forward and pray with you. And let them also be on their guard, armed with their weapons. Those who deny the truth want you to be negligent of your arms and your baggage, so that they may fall upon you suddenly. It is no offence for you to lay aside your arms when overtaken by heavy rain or illness, and always take every precaution for defence. God has prepared a humiliating punishment for those who deny the truth. 102 When you have performed the prayer, remember God, standing and sitting and on your sides. Then, when you are secure, perform the prayer; surely the prayer is a timed prescription for the believers. 103 Do not relax in pursuit of the disbelievers; if you are suffering, they also suffer as you do; and you expect from Allah what they do not; and Allah is All Knowing, Wise. 104