What is the ruling on uttering "You alone we worship and You alone we ask for help" (إياك نعبد وإياك نستعين) without pronouncing the hamza? And what is the opinion of the majority of scholars? And is it obligatory for a person with obsessive-compulsive disorder (waswasi) who forgot to move his finger during the Tashahhud to perform the prostration of forgetfulness (sujud as-sahw)? And should a person with obsessive-compulsive disorder who doubts the number of rak'ahs or prostrations or the pronunciation of letters disregard that?

Omitting the hamzat al-qat' ( قطع) from (iyyaaka – إياك) in Al-Fatihah is a clear grammatical error (lahn jaliyy – لحن جليّ) that changes the meaning, invalidates the prayer, and necessitates its repetition. This is because the hamza here is a hamzat al-qat', and omitting it leads to omitting a letter from the Book of Allah, and intentionally doing so is unequivocally forbidden. It is stated in Al-Mawsu'ah Al-Fiqhiyyah (The Fiqh Encyclopedia): "The Qur’an is the miraculous speech of Allah, revealed to the Messenger of Allah, peace and blessings be upon him, transmitted through continuous tawatur. Therefore, it is forbidden to intentionally make grammatical errors in it, whether it changes the meaning or not, because its wordings are divinely ordained (tawqifiyyah – توقيفية) and have been transmitted to us through continuous tawatur."