[Machine] He went out to their gathering, and then the prayer was established. Their Imam stepped forward and prolonged the prayer and sitting. When he finished, he said, "Whoever among you has fulfilled the bowing and prostration, let him complete them, for behind him is the young, the old, the sick, the traveler, and the one in need." When the prayer was about to begin, 'Adi came forward and completed the bowing and prostration and made up for what he had missed in the prayer. When he finished, he said, "This is how we used to pray behind the Prophet ﷺ ." The wording is from the Hadith of Ibn Mahdi.  

أَنَّهُ خَرَجَ إِلَى مَجْلِسِهِمْ فَأُقِيمَتِ الصَّلَاةُ فَتَقَدَّمَ إمَامُهُمْ فَأَطَالَ الصَّلَاةَ وَالْجُلُوسَ فَلَمَّا انْصَرَفَ قَالَ مَنْ أَمَّنَا مِنْكُمْ فَلْيُتِمَّ الرُّكُوعَ وَالسُّجُودَ فَإِنَّ خَلْفَهُ الصَّغِيرَ وَالْكَبِيرَ وَالْمَرِيضَ وَابْنَ السَّبِيلِ وَذَا الْحَاجَةِ فَلَمَّا حَضَرَتِ الصَّلَاةُ تَقَدَّمَ عَدِيٌّ وَأَتَمَّ الرُّكُوعَ وَالسُّجُودَ وَتَجَوَّزَ فِي الصَّلَاةِ فَلَمَّا انْصَرَفَ قَالَ «هَكَذَا كُنَّا نُصَلِّي خَلْفَ النَّبِيِّ ﷺ» وَاللَّفْظُ لِحَدِيثِ ابْنِ مَهْدِيٍّ