´It was narrated that 'Aishah said:` "The Messenger of Allah (ﷺ) used to pray for a long time at night. If he started to pray standing, he would bow standing and if he started to pray sitting, he would bow sitting."
Hadith ReferenceSunan an-Nasa'i / The Book of Qiyam Al-Lail (The Night Prayer) and Voluntary Prayers During the Day / Hadith: 1647
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم