(16) باب فَضْلِ الصَّلاَةِ فِي جَمَاعَةٍ
It was narrated that Ibn 'Umar said:
"The Messenger of Allah said: 'The prayer of a man in congregation is twenty-seven levels more virtuous than a man's prayer on his own.'" (ID)
Reference (ID): Sunan Ibn Majah 789 (ID)
In-book reference (ID): Book 4, Hadith 55 (ID)
English translation (ID): Vol. 1, Book 4, Hadith 789 (ID)