"The Messenger of Allah said: 'A man's prayer in congregation is twenty-some levels higher than his prayer in his house or in the marketplace.'" (Using translation from Ibn Mājah 786)
قَالَ رَسُولُ اللهِ ﷺ صَلَاةُ الرَّجُلِ فِي جَمَاعَةٍ تَزِيدُ عَلَى صَلَاةِ الْفَذِّ خَمْسًا وَعِشْرِينَ دَرَجَةً