As-Salaam Alaikum Wa-Rahmatullahi Wa-Barakatuhu

Narrated Abu Huraira (Radi-Allahu 'anhu):

Allah's Apostle (Sallallahu 'Alaihi Wa Sallam) said, "If the people knew
the reward for pronouncing the Adhan and for standing in the first row (in
congregational prayers) and found no other way to get that except by
drawing lots they would draw lots, and if they knew the reward of the Zuhr
prayer (in the early moments of its stated time) they would race for it (go
early) and if they knew the reward of 'Isha' and Fajr (morning) prayers in
congregation, they would come to offer them even if they had to crawl."