The ruling on a sick person leaving off prayer during his illness

Question:
Some of the sick, when you advise them, say: I do not pray until I am cured?

Answer:
He is to be taught with gentleness and wisdom, and he is told: It is obligatory for you to pray in your current state, even if you are on your side, even if you are unable to use water, even if it is by dry ablution. And if he is unable to perform dry ablution, those around him from his relatives or his servants perform it for him; so that he prays it in its time and does not delay it.