What are the manners of prayer when bearing arms?

This hadith is not authentic and not established because its chain of narration contains a narrator named Dirar ibn Amr, who is Al-Malti. Ibn Hibban said about him: "His hadith is very deniable." Ibn Ma'in said: "He is nothing, and his hadith should not be written." Al-Daraqutni said: "He is abandoned." What is established in the Prophetic Sunnah is the disapproval of exposing worshippers in the mosque to the harm of weapons.