“whoever prays ‘Isha in congregation is like one who spent half the night in prayer, and whoever prays Fajr in congregation is like one who spent the entire night in prayer.”  

أَنَّ النَّبِيَّ ﷺ قَالَ مَنْ صَلَّى الْعِشَاءَ فِي جَمَاعَةٍ فَهُوَ كَمَنْ قَامَ نِصْفَ اللَّيْلِ وَمَنْ صَلَّى الصُّبْحَ فِي جَمَاعَةٍ فَهُوَ كَمَنْ قَامَ اللَّيْلَ كُلَّهُ  

'Uthman b. 'Affan (narrated the mosque after evening prayer and sat alone. I also sat alone with him, so he said: 0, son of my brother, I heard the Messenger of Allah ﷺ say: He who observed the 'Isha' prayer in congregation, it was as if he prayed up to midnight, and he who prayed the morning prayer in congregation, it was as if he prayed the whole night. (Using translation from Muslim 656a)  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ «مَنْ صَلَّى الْعِشَاءَ فِي جَمَاعَةٍ فَكَأَنَّمَا قَامَ نِصْفَ اللَّيْلِ وَمَنْ صَلَّى الصُّبْحَ فِي جَمَاعَةٍ فَكَأَنَّمَا صَلَّى اللَّيْلَ كُلَّهُ»  

[Machine] I heard the Messenger of Allah ﷺ saying, "Whoever prays the last Isha prayer in congregation, it is as if he had prayed the whole night, and whoever prays Fajr prayer in congregation, it is as if he had prayed the whole day."  

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «مَنْ صَلَّى الْعِشَاءَ الْآخِرَةَ فِي جَمَاعَةٍ فَكَأَنَّمَا صَلَّى اللَّيْلَ كُلَّهُ وَمَنْ صَلَّى الْغَدَاةَ فِي جَمَاعَةٍ فَكَأَنَّمَا صَلَّى النَّهَارَ كُلَّهُ»  

"مَنْ صَلَّى العِشَاءَ في جَمَاعَة فَكَأَنَّمَا قَامَ نصْفَ لَيلَةٍ، وَمَنْ صَلَّى الصُّبْحَ فِي جَمَاعَةٍ فَكَأَنمَا صَلَّى اللَّيلَ كلَّهُ".  

"مَنْ صَلَّى العِشَاءَ الآخرَةَ في جَمَاعَةٍ، فَكَأَنَّمَا صَلَّى اللَّيلَ كُلَّهُ، وَمَنْ صَلَّى الغَدَاةَ فِي جَمَاعَةٍ فَكَأَنَّمَا صَلَّى النَّهَارَ كُلَّهُ".