عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ : صَلاَةُ الْجَمَاعَةِ تَفْضُلُ صَلاَةَ الْفَذِّ بِسَبْعٍ وَعِشْرِينَ دَرَجَةً.
Hazrat Abdullah ibn Umarra narrated that Allah’s Messengersa said: “A congregational prayer is superior to a solitary prayer by twenty-seven degrees.”
(Sahih al-Bukhari, Kitab al-adhan, Bab fadli salati l-jama‘ah, Hadith 645)