had piles, so I asked the Prophet (ﷺ) about the prayer. He said, "Pray while standing and if you can't, pray while sitting and if you cannot do even that, then pray Lying on your side."
Sahih al-Bukhari Book 18, Hadith 37
← Previous Hadith `Imran bin Husain had piles. Once Abu Ma mar narrated from `Imran bin Husain had said, "I asked the Prophet (p.b.u.h) about the prayer of a person while sitting. He said, 'It is better for one to pray standing; and whoever prays sitting gets half the reward of that who prays while standing; and whoever prays while Lying gets half the reward of that who prays while sitting.' "

Sahih al-Bukhari Book 18, Hadith 36 Next Hadith → (the mother of the faithful believers) I never saw Allah's Messenger (ﷺ) offering the night prayer while sitting except in his old age and then he used to recite while sitting and whenever he wanted to bow he would get up and recite thirty or forty verses (while standing) and then bow.

Sahih al-Bukhari Book 18, Hadith 38