An-Nisa 4:102 واذا كنت فيهم فاقمت لهم الصلاة فلتقم طايفة منهم معك ولياخذوا اسلحتهم فاذا سجدوا فليكونوا من ورايكم ولتات طايفة اخرى لم يصلوا فليصلوا معك ولياخذوا حذرهم واسلحتهم ود الذين كفروا لو تغفلون عن اسلحتكم وامتعتكم فيميلون عليكم ميلة واحدة ولا جناح عليكم ان كان بكم اذى من مطر او كنتم مرضى ان تضعوا اسلحتكم وخذوا حذركم ان الله اعد للكافرين عذابا مهينا ١٠٢

When you (O prophet) are in their midst, and arrange for them the Salāh, then, a party from them should stand with you, and should take their arms along. Then, once they performed Sajdah, they should move away from you, and the other party, that has not yet performed Salāh, should come and perform Salāh with you, and should take their precautionary measures and their arms. Those who disbelieve would want you to become heedless to your arms and your belongings, so that they come down upon you in a single move. There is no sin on you, if you have some inconvenience due to rain, or you are sick, in putting your arms aside, but take your precautionary measures. Surely, Allah has prepared for the disbelievers a humiliating punishment.