[Machine] The Messenger of Allah ﷺ used to pray nine units of night prayer. But when he got older and became heavy, he prayed seven units. Sufyan bin Sa'id contradicted him and narrated it from Al-A'mash from Ibrahim from Al-Aswad from Aisha.
كَانَ رَسُولُ اللهِ ﷺ «يُصَلِّي مِنَ اللَّيْلِ تِسْعًا فَلَمَّا أَسَنَّ وَثَقُلَ صَلَّى سَبْعًا» خَالَفَهُ سُفْيَانُ بْنُ سَعِيدٍ رَوَاهُ عَنِ الْأَعْمَشِ عَنْ إِبْرَاهِيمَ عَنِ الْأَسْوَدِ عَنْ عَائِشَةَ