Sahih MuslimChapter 5Hadith 1477
Full Sharh — Sahih Muslim 1477
حَدَّثَنَا يَحْيَى بْنُ يَحْيَى، قَالَ قَرَأْتُ عَلَى مَالِكٍ عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ " صَلاَةُ الْجَمَاعَةِ أَفْضَلُ مِنْ صَلاَةِ الْفَذِّ بِسَبْعٍ وَعِشْرِينَ دَرَجَةً " .
English Translation
Ibn Umar reported Allah's Messenger (ﷺ) assaying:Prayer said in a congregation is twenty-seven degrees more excellent than prayer said by a single person
Source
Sahih Muslim(صحيح مسلم)
The Book of Mosques and Places of Prayer
Hadith Number
1477