How does one who has undergone surgery and is unable to get out of bed purify himself and pray?

Question:
One who has undergone surgery and is unable to get out of bed, and fears that his garment will become ritually impure, how does he purify himself? Does he perform wudu with water, or does he leave that?

Answer:
If it is possible for him to perform wudu with water by having water brought and placing something for the water to flow onto and fall upon, such as a basin or the like, then he performs wudu as much as he is able. And if he is unable to do so, he performs tayammum with dust and prays, and praise be to Allah.