And when you (Muslims) travel in the land, there is no sin on you if you shorten your Salat (prayer) if you fear that the disbelievers may attack you, verily, the disbelievers are ever unto you open enemies. 101 Thus, when thou art among the believers and about to lead them in prayer, let [only] part of them stand up with thee, retaining their arms. Then, after they have finished their prayer, let them provide you cover while another group, who have not yet prayed, shall come forward and pray with thee, being fully prepared against danger and retaining their arms: (for) those who are bent on denying the truth would love to see you oblivious of your arms and your equipment, so that they might fall upon you in a surprise attack. But it shall not be wrong for you to lay down your arms [while you pray] if you are troubled by rain or if you are ill; but [always] be fully prepared against danger. Verily, God has readied shameful suffering for all who deny the truth! 102 When you have finished the prayer, remember God while standing, and sitting, and lying on your sides. When you feel secure, say your prayers in the prescribed form. Believers are under the obligation to say their prayers at the appointed hours. 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