When you ( O Messenger Muhammad SAW ) are among them , and lead them in As-Salat ( the prayer ) , let one party of them stand up [ in Salat ( prayer ) ] with you taking their arms with them ; when they finish their prostrations , let them take their positions in the rear and let the other party come up which has not yet prayed , and let them pray with you taking all the precautions and bearing arms . Those who disbelieve wish , if you were negligent of your arms and your baggage , to attack you in a single rush , but there is no sin on you if you put away your arms because of the inconvenience of rain or because you are ill , but take every precaution for yourselves .