The ruling on praying voluntary prayers while sitting, and whether one receives the same reward as one who prays standing?

Question:
The questioner says: If I, Shaykh, also pray the voluntary prayers on a chair, is this the same as when I am standing?

Answer:
If you pray on a chair, and it is because of a need, being unable to stand, then it is like the one who stands. Allah the Exalted said: But if she is able to stand, then it is permissible for her to pray the voluntary prayer sitting, but she does not get more than half the reward of the one who stands. Yes.