[Machine] We used to observe the Prophet's ﷺ standing in prayer during the noon and afternoon prayers. We would observe his standing in the first two units of the noon prayer, equivalent to the recitation of Surah Sajdah, and we would observe his standing in the last two units to the extent of half of that. We would also observe his standing in the first two units of the afternoon prayer, equivalent to his standing in the last two units of the noon prayer, and in the last two units to the extent of half of that. This is according to the narration of Yahya ibn Yahya, and in the narration of Musaddad, it is mentioned to the extent of thirty verses, and the rest is similar in meaning.
كُنَّا نُحْرِزُ قِيَامَ رَسُولِ اللهِ ﷺ فِي الظُّهْرِ وَالْعَصْرِ فَحَرَزْنَا قِيَامَهُ فِي الرَّكْعَتَيْنِ الْأُولَيَيْنِ مِنَ الظُّهْرِ قَدْرَ قِرَاءَةِ الم تَنْزِيلُ السَّجْدَةِ وَحَرَزْنَا قِيَامَهُ فِي الْأُخْرَيَيْنِ قَدْرَ نِصْفٍ مِنْ ذَلِكَ وَحَرَزْنَا قِيَامَهُ فِي الرَّكْعَتَيْنِ الْأُولَيَيْنِ مِنَ الْعَصْرِ عَلَى قَدْرِ قِيَامِهِ فِي الْأُخْرَيَيْنِ مِنَ الظُّهْرِ وَفِي الْأُخْرَيَيْنِ عَلَى النِّصْفِ مِنْ ذَلِكَ لَفْظُ حَدِيثِ يَحْيَى بْنِ يَحْيَى وَفِي حَدِيثِ مُسَدَّدٍ عَلَى قَدْرِ ثَلَاثِينَ آيَةً وَالْبَاقِي بِمَعْنَاهُ