What is the ruling on making up missed prayers for a period of two years at a rate of one day for each day, and is it permissible to perform the regular Sunnah prayers, Qiyam al-Layl, and Duha with the make-up prayers, or should all time be dedicated to making up the prayers? Is it permissible to interrupt making up the prayers due to busyness, and what are the implications for a deceased person who had make-up prayers due with the intention of making them up?

The issue of making up prayers missed intentionally or due to ignorance of a condition or a pillar is a matter of scholarly disagreement. If the questioner suffers from obsessive-compulsive disorder (waswasah), there is no harm for her in adopting the easiest of opinions. If she chooses to make up the prayers, this takes precedence over supererogatory (nafl) prayers. The Malikis are of the view that making up two days' worth of prayers with each day is sufficient, and this is a облегчение (alleviation/leniency) that can be acted upon. She can then pray as many supererogatory prayers as she wishes after making up the obligatory amount.