Whoever attends Isha (prayer) in congregation

The Prophet (ﷺ) said 

"Whoever attends Isha (prayer) in congregation, then he has (the reward as if he had) stood half of the night. And whoever prays Isha and Fajr in congregation, then he has (the reward as if he had) spend the entire night standing (in prayer)."

 Jami'at Tirmidhi- 221