[Machine] The Messenger of Allah ﷺ used to be as if he was sitting on a small stool in the first two cycles of prayer. I (narrator) asked: until he stood up? He replied: until he stood up 2800. Abu Zakariyya and Abu Bakr informed us, they said: Abu al-Abbas narrated to us, who was informed by al-Rabi' and he was informed by al-Shafi'i, who was informed by Ibrahim ibn Sa'd ibn Ibrahim, and he mentioned it in its meaning, and so it goes.  

كَانَ رَسُولُ اللهِ ﷺ إِذَا كَانَ فِي الرَّكْعَتَيْنِ الْأُولَيَيْنِ كَأَنَّمَا يَكُونُ عَلَى الرَّضْفِ قَالَ قُلْتُ حَتَّى يَقُومَ؟ قَالَ حَتَّى يَقُومَ 2800 أَخْبَرَنَا أَبُو زَكَرِيَّا وَأَبُو بَكْرٍ قَالَا ثنا أَبُو الْعَبَّاسِ أنبأ الرَّبِيعُ أنبأ الشَّافِعِيُّ أنبأ إِبْرَاهِيمُ بْنُ سَعْدِ بْنِ إِبْرَاهِيمَ فَذَكَرَهُ بِمَعْنَاهُ وَكَذَلِكَ