عَنِ ابْنِ عُمَرَ رَضِيَ اللَّهُ عَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قَالَ: ((صَلَاةٌ فِي الْجَمِيعِ تَزِيدُ عَلَى صَلَاةِ الرَّجُلِ وَحْدَهُ سَبْعًا وَعِشْرِينَ))
It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: The congregational prayer of a man is twenty-seven times more superior than his prayer alone.