My grandmother says the takbir for prayer, then forgets she is in prayer and talks, and does not complete the prayer in the best way. What is obligatory for us?

Question:
May Allah reward you with good, and may He do you good. Umm 'Abd al-Rahman asks and says: My grandmother is afflicted with hemiplegia. At the times of prayer, we order her to pray. She says the takbir, and then she forgets that she is in prayer and talks. We notice that she does not complete the prayer in the best way. What is obligatory for us? And is there a specific limit to the effect of old age? May Allah reward you with good. We advise her, but she does not follow the advice.

Answer:
It is obligatory for you to command her to pray when the time enters and to assist her in praying, so she prays according to her condition, . She is to be commanded to pray and shown the entry of the time. If she needs assistance with ritual purity, whether in water or in dry ablution, you assist her, and you are rewarded for that. Whatever occurs from her in the way of confusion, speech, or otherwise is excused, because this is the limit of her ability and capacity. Allah says: There is no fixed limit for delay; this varies according to the people. Yes.