What is the ruling on having unknowingly omitted the opening Takbir (Takbirat al-Ihram) for ten years, and is it obligatory to make up the missed prayers, and how is that done given the difficulty and hardship involved, and what is the ruling on the Takbirs for lowering and rising (during prayer)?

The opening takbir (Allahu Akbar) is one of the pillars of prayer (salat); the prayer is not valid without it, whether it was omitted intentionally or out of forgetfulness. Therefore, the questioner must make up the prayers she performed after puberty without the opening takbir.

She must begin making them up immediately, performing as many as she can day and night, in a way that does not harm her body or livelihood, until her obligation is fulfilled. All times are suitable for making up prayers. Making up prayers is according to one's ability; what is difficult is waived.

She must beware of obsessive doubts (waswas) and turn away from them. The questioner is not considered to have abandoned prayer because she did not do so intentionally. She must repent if she neglected to learn what makes her prayer valid. The view of the majority of scholars regarding the obligation of making up prayers is more cautious and more absolving of responsibility, and it is the fatwa given.

If she suffers from incontinence, she must perform ablution (wudu') for each prayer after its time has begun, along with cleaning herself (istinja') and taking precautions. Some scholars hold that it is not necessary to repeat ghusl (ritual bath) and bandaging for every prayer to avoid hardship. Purity from impurities (taharat al-khabath) is a condition for the validity of prayer. Whoever prays with impurity, knowing about it and being able to remove it, his prayer is not valid. Fear of bathrooms is not a legitimate excuse for neglecting purification.