The nāfilah of ʿaṣr is performed before the ʿaṣr prayer, and its time continues until the time it is possible to perform it before performing the ʿaṣr prayer. However, if one delays performing the nāfilah of ʿaṣr until the time that the shadow of an indicator becomes four-sevenths the length of the indicator, it is better to perform the ʿaṣr prayer before the nāfilah prayer, except in the case mentioned in the previous ruling.
Ruling 757.* The time for the nāfilah of maghrib starts after performing the maghrib prayer and continues until the time it is possible to perform it after performing the maghrib prayer within its prescribed time. However, if one delays performing the nāfilah of maghrib until the redness of the western sky – which is visible after the sun sets – disappears, it is better that he first perform the ʿishāʾ prayer.