Question 7: I have a thirty year old daughter who is a mother. She has been suffering from a mental disorder for fourteen years now. In the past, this disorder used to afflict her during irregular intervals. This time her mental disorder has lasted for three months. Accordingly, she cannot perform Wudoo’ (ablution) or Salaah (prayer) unless there is someone to guide her about how to perform prayers and the number of Rak`ahs (units of Prayer). Now, after the advent of the blessed month of Ramadaan, she only fasted one day and didn’t fast the rest of the month. Please, guide us regarding the obligatory duties on her and on me, as I am the one responsible for her. May Allaah reward you.
Answer: If the case is as you have mentioned, she is not obliged to fast, pray, or even make up for them, and all you have to do is to take good care of her as you are the one responsible for her. It is authentically reported that the Prophet (peace be upon him) said… read more here