I asked ‘A’ishah whether the Messenger of Allah ﷺ recited a whole Surah (of the Quran) in one Rak’ah of the prayer. She replied : (He recited from among) the Mufassal surahs. I asked: Did he pray (at night) sitting? She replied : (he prayed sitting) when the people made him old. (Using translation from Abū Dāʾūd 956)
سَأَلْتُ عَائِشَةَ هَلْ كَانَ رَسُولُ اللَّهِ ﷺ يَقْرَأُ السُّورَةَ فِي الرَّكْعَةِ؟ قَالَتْ «مِنَ الْمُفَصَّلِ» قَالَ فَقُلْتُ أَكَانَ يُصَلِّي قَاعِدًا؟ قَالَتْ «حِينَ حَطَمَهُ السِّنُّ»