Vizuizi (vinavyozuia) katika kuzingatia utekelezaji na ombi vimegawanywa katika makundi mawili:

The Mawaani’ (preventers) in consideration of the performance and request are divided into two categories:

1 – Maani' ambayo inazuia Talab (ombi) na inazuia utekelezaji, na hii ni kama kupoteza 'Aql (akili) kutokana na usingizi au wazimu. Hiyo ni kwa sababu inazuia ombi la sala, funga na biashara miongoni mwa mambo mengine yanayohusiana na Ahkaam. Wakati huo huo, inazuia utekelezaji wake, na kwa hiyo aina hii inawakilisha kizuizi (Maani') dhidi ya Talab ya awali ya Takleefiy.

1 – A Maani’ that is preventative of the Talab (request) and prevents the performance and this is like the loss of the ‘Aql (mind) due to sleep or insanity. That is because it prevents the request of prayer, fasting and trade amongst other matters related to the Ahkaam. At the same time, it prevents its performance and so this kind represents a preventer (Maani’) from the original Takleefiy Talab (request).

2 – Maani' ambayo inazuia Talab lakini haizuii utekelezaji, na hii ni kama kuwa mwanamke kuhusiana na Swala ya Ijumaa. Hiyo ni kwa sababu kuwa mwanamke ni kizuizi cha ombi la Swalaat ul-Jumu'ah; hata hivyo, mwanamke akitekeleza Swala hiyo, itakuwa sahihi kwake, kwa kuwa Maani' inazuia Talab lakini haizuii Adaa' (ombi lakini si utekelezaji). Vivyo hivyo, Safari ni Maani' kwa Talab (ombi) la kufunga Swawm, au la kukamilisha Rak'ah nne za Swala zenye Rak'ah nne. Hata hivyo, ikiwa Musaafir (msafiri) atafunga au kuswali Rak'ah nne bila kufupisha, hilo litamruhusiwa kwa sababu Maani' inawakilisha kizuizi (Maani') dhidi ya Talab na si dhidi ya 'Adaa (utekelezaji).

2 – A Maani’ that prevents the Talab but does not prevent the performance and this is like being female in respect to the Jumu’ah prayer. That is because being female is a preventer of the request of Salaat ul-Jumu’ah however if the woman was to perform the Salaah it would be valid for her because the Maani’ is preventative of the Talab but not the Adaa’ (the request but not the performance). Similarly, Safar (travelling) is a Maani’ for the Talab (request) of fasting (As-Sawm) or from completing the four Rak’ah of the four Rak’ah prayers. However, if the Musaafir (traveller) was to fast or pray four Rak’ah without shortening, that would be permitted for him because the Maani’ represents a preventer (Maani’) from the Talab and not the ‘Adaa (performance).

Vivyo hivyo hivyo, sababu zote za Rukhas (wingi wa Rukhsah, yenye maana ya ruhusa maalum au leseni ya kuacha kitendo fulani) ni Mawaani' (vizuizi) vya Talab (ombi au amri) na si vya utekelezaji.

Similarly, all of the causes of Rukhas (plural of Rukhsah meaning special permission or licence to leave an action) represent Mawaani’ (preventers) from the Talab (request) and not from the performance.