"Al-Mughirah bin Shu'bah led us in Salat, and he continued after the two Rak'ah, so the people said: 'Subhan Allah' and he said: 'Subhan Allah' to them. When he finished his Salat he said the Taslim then performed two prostrations of As-Sahw while he was sitting. Then he narrated to them that Messenger of Allah did the same with them as he had done."  

أَنَّ رَسُولَ اللَّهِ ﷺ فَعَلَ بِهِمْ مِثْلَ الَّذِي فَعَلَ قَالَ وَفِي الْبَابِ عَنْ عُقْبَةَ بْنِ عَامِرٍ وَسَعْدٍ وَعَبْدِ اللَّهِ ابْنِ بُحَيْنَةَ  

"Al-Mughirah bin Shu'bah les us in Salat. When he prayed two Rak'ah he stood without sitting. Those who were behind him said 'Subhan Allah' and he indicated to them that they should stand. He said the Taslim when he had finished his Salat and he performed two prostrations of As-Sahw, and said the Taslim. He said that Messenger of Allah did this."  

أَنْ قُومُوا فَلَمَّا فَرَغَ مِنْ صَلاَتِهِ سَلَّمَ وَسَجَدَ سَجْدَتَىِ السَّهْوِ وَسَلَّمَ وَقَالَ هَكَذَا صَنَعَ رَسُولُ اللَّهِ ﷺ