Fatwa : Person praying with impure clothes because he is not well

Question:
My father is sick, and he prays while his clothing is impure. Is his prayer valid?
Answer:
Provide him with a clean garment for prayer. 

سؤال:
أبي مريض، ويصلي ولباسه متنجس، فهل تصح صلاته؟
 الجواب:
خصصوا له ثوبًا طاهرًا للصلاة.

- Sayyid Muhammad Abdullah Awad