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 And when you (O dear Prophet Mohammed – peace and blessings be upon him) are among them and lead them in prayer, only a group of them should be with you, and they must keep their weapons with them; so when they have performed their prostrations they should move away behind you; and the other group that had not prayed, must come and offer prayers in your leadership, keeping their guard and weapons with them; the disbelievers wish that you neglect your arms and your means so they may overpower you with a single attack; it is no sin for you to lay aside your arms due to rain or if you are sick; and keep your guard; undoubtedly Allah has kept prepared a disgraceful punishment for the disbelievers. 102 Then when ye have finished the prayer, remember Allah, standing and sitting and lying on your sides. Then when ye are secure, establish the prayer; verily the prayer is prescribed unto the believers at definite times. 103 And don't be weak in the pursuit of the enemy; if you are suffering (hardships) then surely, they (too) are suffering (hardships) as you are suffering, but you have a hope from Allah (for the reward, i.e. Paradise) that for which they hope not, and Allah is Ever All-Knowing, All-Wise. 104