What was narrated concerning standing for a long time in Prayer
حَدَّثَنَا أَبُو هِشَامٍ الرِّفَاعِيُّ، مُحَمَّدُ بْنُ يَزِيدَ حَدَّثَنَا يَحْيَى بْنُ يَمَانٍ، حَدَّثَنَا الأَعْمَشُ، عَنْ أَبِي صَالِحٍ، عَنْ أَبِي هُرَيْرَةَ، قَالَ كَانَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ يُصَلِّي حَتَّى تَوَرَّمَتْ قَدَمَاهُ فَقِيلَ لَهُ إِنَّ اللَّهَ قَدْ غَفَرَ لَكَ مَا تَقَدَّمَ مِنْ ذَنْبِكَ وَمَا تَأَخَّرَ . قَالَ " أَفَلاَ أَكُونُ عَبْدًا شَكُورًا " .
It was narrated that Abu Hurairah said: “The Messenger of Allah (ﷺ) used to pray until his feet became swollen. It was said: ‘O Messenger of Allah, Allah has forgiven you your past and future sins.’ He said: ‘Should I not be a thankful slave?’”