Prayer in congregation is equivalent to twenty-five prayers (offered alone). If he prays in a jungle, and performs its bowing and prostrations perfectly, it becomes equivalent to fifty prayers (in respect of reward). Abu Dawud said: 'Abd al-Walid b. Ziyad narrated in his version of this tradition: "Prayer said by a single person in a jungle is more excellent by multiplied degrees than prayer said in congregation."  

قَالَ رَسُولُ اللَّهِ ﷺ الصَّلاَةُ فِي جَمَاعَةٍ تَعْدِلُ خَمْسًا وَعِشْرِينَ صَلاَةً فَإِذَا صَلاَّهَا فِي فَلاَةٍ فَأَتَمَّ رُكُوعَهَا وَسُجُودَهَا بَلَغَتْ خَمْسِينَ صَلاَةً  

[Machine] The Messenger of Allah ﷺ said, "Praying in congregation is rewarded as twenty-five times greater than praying alone. And if one perfects the bowing and the prostration in the prayer, it reaches the reward of fifty prayers."  

قَالَ رَسُولُ اللَّهِ ﷺ «الصَّلَاةُ فِي الْجَمَاعَةِ تَعْدِلُ خَمْسًا وَعِشْرِينَ صَلَاةً فَإِذَا صَلَّاهَا فِي الْفَلَاةِ فَأَتَمَّ رُكُوعَهَا وَسُجُودَهَا بَلَغَتْ خَمْسِينَ صَلَاةً»  

"صَلاةُ الرَّجلِ في جَمَاعَةٍ تَزيدُ عَلى صَلاتِهِ وَحْدَهُ خمسًا وَعِشرينَ درَجِةً فإِذَا صَلَّاهَا بأرْض فَلاةٍ فَأتَمَّ وُضوءَهَا وُركُوعَها وَسُجُودَهَا بَلَغَت صَلاتُهُ خَمْسِينَ درجةً".