Salaah of a sick person

Combining salaahs due to illness

Q: Can I combine my prayers? I have a urine condition where if I go to the toilet, then after a few minutes, I feel that there is a drop of urine coming out.

Due to this condition, I try to not go to the toilet in the daytime so that I can perform my prayers, but it is a painful process to suppress your need to relieve yourself.

Can I combine my Zohr and Asr prayers and then perform the Esha prayer with Maghrib?

Paying for missed salaahs of a sick person

Q: My father is ill and unable to perform his salaah. I understand that I cannot perform the salaah for him. Is there any other way for me to cover up his salaah for him, and if so, how much will it cost to pay for his salaah? We estimate around 50 years without salaah. He has a house which just got paid off to the value of approx R800 000 and a car to the value of approx R40 000.