Messenger of Allah said: "Salat in congregation is twenty-seven degrees more virtuous than a man's Salat alone."  

قَالَ رَسُولُ اللَّهِ ﷺ صَلاَةُ الْجَمَاعَةِ تَفْضُلُ عَلَى صَلاَةِ الرَّجُلِ وَحْدَهُ بِسَبْعٍ وَعِشْرِينَ دَرَجَةً قَالَ وَفِي الْبَابِ عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ وَأُبَىِّ بْنِ كَعْبٍ وَمُعَاذِ بْنِ جَبَلٍ وَأَبِي سَعِيدٍ وَأَبِي هُرَيْرَةَ وَأَنَسِ بْنِ مَالِكٍ  

Messenger of Allah said: "Indeed a man's Salat in the congregation is increased by twenty five rewards over his Salat alone."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِنَّ صَلاَةَ الرَّجُلِ فِي الْجَمَاعَةِ تَزِيدُ عَلَى صَلاَتِهِ وَحْدَهُ بِخَمْسَةٍ وَعِشْرِينَ جُزْءًا