Q: What are the conditions before a person can perform salaat on a chair? I have been informed that a person can only perform salaat this way if they are not physically able to get up from Ruku and Sijdah. Is this correct?
A: If a person cannot stand up from sajdah then he can make salaah on the chair. Likewise when he cannot make the sajdah itself then he can make salaah sitting on the chair. He will then make his ruku and sajdah by bending forward slightly. He will bend forward lower for sajdah than he would for ruku. Similarly if a person cannot stand because of weakness or dizziness he may sit on the chair.