صَلاةُ الرَّجُلِ فِي جَمَاعَةٍ خَيْرٌ مِنْ صَلاتِهِ فِي بَيْتِهِ أرْبَعِينَ سَنَةً.
One prayer of a person in congregation is worthier than his forty years of performing prayer at home (individually).