It wasnarrated that 'Abdullah bin Shaqiq Al-'Uqaili said:
"I asked'Aishah about the prayer of the Messenger of Allah (ﷺ) at night.Shesaid: 'He used to pray for a long time at night standing up,and for along time at night sitting down. If he prayed standing, hewould bowstanding, and if he prayed sitting, he would bow sitting.'" (ES)
English reference (ES): Vol. 1, Book 5, Hadith 1228 (ES)
Arabic reference (ES): Book 5, Hadith 1286 (ES)