question #1 Sahih al-Bukhari 1148, Book 19, Hadith 29 : How did the Prophet (ﷺ) adapt his practice of night prayer as he aged?

I did not see the Prophet (ﷺ) reciting (the Qur’an) in the night prayer while sitting except when he became
old; when he used to recite while sitting, and when thirty or forty verses remained from the Sura, he
would get up and recite them and then bow.