question #1 Sahih Muslim 411c, Book 4, Hadith 85 : What should a person do if they are unable to stand during prayer due to an injury?

The Messenger of Allah (ﷺ) fell down from a horse and his right side was grazed, and the rest of the hadith is the same with the addition of these words:” When he (the Imam) says prayer standing, you should also do so.”