(And if ye go in fear) of the enemy's sword, (then (pray) standing or on horseback) in whatever direction. (And when ye are again in safety) from the enemy, (remember Allah) pray to Allah performing the bowings and prostrations, (as He hath taught you) in the Qur'an: the traveller prays two units of prayer while the resident prays four units (that which ye knew not) before the revelation of the Qur'an.