Reward Equal to Praying Half Night and Full Night

Praying `Isha and Fajr in congregation:

“He who prays Isha’ in Jama’ah [congregation] is as if he has prayed for half the night. As to him who (also) prays Fajr in congregation, it is as if he has prayed all night.” [narrated by Malik and the wording is that of Muslim who also reported it]

Further Reading:

• Urging to Observe ‘Isha’ and Fajr Prayers in Congregation – Riyadh ul saaliheen