The Prayer of Peril (Fear) was legislated so that the Muslims could fulfil the obligation of prayer without exposing themselves to the danger of being killed while fighting the enemies of Allah. It is intended to lighten the burdens of the Muslims who are engaged in the fight, so their enemy does not attack or take them out during their prayer. This hadeeth transmitted by ‘Abdullah ibn ʿUmar (may Allah be pleased with them) explains one of the forms of the Prayer of Peril (Fear) upon the encounter of the two armies. This is an abridged portion of another hadeeth dealing with the description of the Prayer of Peril (Fear). The intended [conveyance in meaning] of his statement, “Whenever they are engaged in indiscriminate combat with the disbelievers,” is that whenever the Muslims engage in direct combat with the disbelievers, then it is possible for them to pray standing while satisfying the gestures for bowing and prostration; thus, they do not bow or prostrate. The [gesture for] prostration [should be] lower than bowing - so that it may be distinguished. If the enemy’s [presence] increases to [the point of] intensified peril (fear) - [i.e.] to which it is impossible for the Muslims to pray standing in place, nor form a row – then they should pray standing on their feet, or while riding upon their mounts. This is because the injunction of dismounting from the top of their beasts becomes waived due to the peril [at hand]. They may pray facing the Qiblahor any other point of direction, according to [the best of] their ability. This prayer is known as the Prayer of Sword Duelling, which is a name that was given because it is performed while attacking with swords and other weapons of war while continuing without any interruption. [What is] meant [here] is that whenever the peril (fear) is immense and the two armies are in close proximity via combat, and the Muslims are not safe from the enemy’s attack if they were to turn their backs to them, or [if the Muslims] become fragmented, then it is not permissible for them to delay the prayer beyond its time. But rather, they should pray it while riding or walking - [in] any way they are able to; otherwise, they should delay the prayer to a time [when] the danger dissipates and after the battle has subsided. [This is] because in Saheeh Muslim, [it is narrated] on the authority of ‘Abdullah ibn Masʿood(may Allah be pleased with him) [that] he said: “The polytheists prevented the Messenger of Allah ﷺ from performing the ‘Asr prayer until the sun became reddish - or yellowish. The Messenger of Allah ﷺ commented on that by saying, “They diverted us from performing the middle prayer (ʿAsr), may Allah fill their innards and graves with fire.” From the other benefits that we can conclude from this hadeeth is that Muslims should be cautious of the enemy during the time of battle in every way possible. Furthermore, it shows how Islam made the fulfilment of the obligatory prayer easy on those who are accountable in Islam [i.e., they are obligated to offer the five prayers]..