“I asked ‘Aishah about the prayer of the Messenger of Allah ﷺ at night. She said: ‘He used to pray for a long time at night standing up, and for a long time at night sitting down. If he prayed standing, he would bow standing, and if he prayed sitting, he would bow sitting.’” (Using translation from Ibn Mājah 1228)
عَنْ صَلَاةِ رَسُولِ اللهِ ﷺ مِنَ اللَّيْلِفَقَالَتْ كَانَ يُصَلِّي لَيْلًا طَوِيلًا قَائِمًا وَلَيْلًا طَوِيلًا قَاعِدًا فَإِذَا قَرَأَ قَائِمًا رَكَعَ قَائِمًا وَإِذَا قَرَأَ قَاعِدًا رَكَعَ قَاعِدًا