People who can not stand, then have to perform prayers by sitting. Persons who can not afford to pray by sitting, then, should perform prayers by way of sloping sleep. If by way of sloping sleep is still not possible, then should perform prayers by way of sleep supine. If you still can not do it with sleep supine, then have to perform greeting prayer with eyelid. If it is still not possible to do it that way, then it should run the pillars of prayer in the heart. More details are described in the chapter of the Ma'dzûr Prayers.
