question #3 Sahih Muslim 731c, Book 6, Hadith 136 : What can be learned from the Prophet’s practice of reciting forty verses before bowing in prayer?

The Messenger of Allah (ﷺ) used to recite in sitting position (while observing the Tahajjud prayer) and when he intended to bow, he would stand up and recite (for the duration in which) a man (ordinarily) recites forty verses.