Issue No.660- One whose obligation is to offer prayer with tayammum, can also perform qaḍā prayer with tayammum in that situation. However, if he is sure that his excuse will be removed soon, he should wait until then. Also, if he hopes that his excuse will be removed soon, he should, as an obligatory precaution, delay offering qaḍā prayer.
Issue No.663- The things which invalidate wuḍū or ghusl [1] , invalidate the tayammum in lieu of wuḍū or ghusl.
Issue No.664- If a number of ghusls are obligatory on a person, but it is not possible for him to perform ghusl, one tayammum in lieu of all will suffice.
Issue No.665- If a person performs tayammum instead of ghusl, it is not necessary for him to perform wuḍū or perform another tayammum instead of wuḍū irrespective of whether it is instead of ghusl of janābah or other ghusls. However, the recommended precaution is that, in case of other ghusls, he should do wuḍū and if he cannot do so, he should perform another tayammum instead of wuḍū.
Issue No.666- If one performs tayammum instead of ghusl and later, an act which invalidates wuḍū occurs, he should only perform wuḍū for the subsequent prayers, and if he cannot do so, he should perform tayammum in lieu of wuḍū.
Issue No.668- There is no qaḍā necessary for the prayers which have been offered with tayammum. However in a few instances it is better that a person repeats the prayers which he has performed with tayammum:First: When no water was available or there was a problem in using water, and he intentionally made himself junub and offered the prayers with tayammum.Second: When a person did not go in search of water intentionally until the time for prayer became short and he performed the prayer with tayammum and realized later that if he had made a search for water he would have been able to obtain it.Third: When he disposed of water intentionally although he knew or thought that he would not be able to get water, and offered the prayers with tayammum.
Issue No.669- There are six obligatory prayers: 1- Daily prayers.2- Prayer of Signs (āyāt). 3- Prayer over the dead body.4- Prayer for the obligatory ṭawāf of the holy Ka‘bah.5- Lapsed prayers of one’s father and mother, obligatory upon the eldest son.6- Recommended prayers which become obligatory on account of vow (nadhr), covenant (‘ahd) or oath (al-yamīn).
Issue No.673- Ẓuhr and ‘aṣr prayers each have their own exclusive and common times. The exclusive time for ẓuhr begins from the beginning of ẓuhr and extends until the time enough for offering ẓuhr prayer. The exclusive time for ‘aṣr prayer is the time enough to offer ‘aṣr prayer before the sun sets. If a person has not offered his ẓuhr prayer by this time, his ẓuhr prayer becomes qaḍā, and he should offer ‘aṣr prayer. The time in between is the common time for ẓuhr and ‘aṣr prayers.
Issue No.676- Maghrib and ‘ishā’ prayers each have their own exclusive and common times. The exclusive time for maghrib prayer is from the beginning of maghrib until the time enough to offer three rak‘ats. If a person is a traveller and he offers, though inadvertently, the whole ‘ishā’ prayer in this time, it will be void. The exclusive time for ‘ishā’ prayer is the time enough for offering ‘ishā’ prayer until midnight, and if someone delays offering maghrib prayer until this time, he should offer ‘ishā’ prayer first and then offer the qaḍā of maghrib prayer. The time in between is the common time for maghrib and ‘ishā’ prayers. If a person offers ‘ishā’ prayer before maghrib prayer in this time by mistake and takes notice of it after completing the prayer, his prayer will be valid, and he should offer maghrib prayer thereafter.
Issue No.680- If a person intentionally does not offer maghrib and ‘ishā’ prayers until midnight, he should perform the qaḍā of those prayers. However, if he has not offered the prayers due to an excuse, he should offer them, before the fajr prayer and his prayers will be adā (i.e., on time).
Issue No.682- One can start offering prayer only when he becomes certain that the time has set in or when at least one just (‘ādil) person gives information about the time having set in. The adhān of a reliable person who knows the timings will also suffice. In case one considers it highly probable, through other means (either by a correct watch or by something else), that the time has set in, that will also suffice.
Issue No.687- If the time for offering prayer is so short that if one performs some of the recommended acts of the prayer (e.g., qunūt and iqāmah) a part of the prayer will be performed after the prescribed time, he should not perform those recommended acts.
