question #3 Sahih Muslim 730b, Book 6, Hadith 130 : What is the significance of praying both standing and sitting in Islamic tradition?

‘A’isha reported that the Messenger of Allah (ﷺ) would pray in the night for a long time, and when he prayed standing be bowed in a standing posture, and when he prayed sitting, he bowed in a sitting posture.