The excellence is Isha´ and Fajr prayers in congregation

 324. Abdur-Rahman bin Abu ´Amrah reported: ´Uthman bin ´Affan entered the mosque after Maghrib and sat alone. I sat with him, so he said: O son of my brother, I heard the Messenger of Allah sallahu alayhi wa sallam say: ´´He who performs the ´Isha prayer in congregation, would be as though he prayed half the night, and he who performs morning prayer in congregation, would be as though he prayed the whole night.´´