The reward of calling out the azaan and performing salaah in the first saff

عن أبي هريرة رضي الله عنه قال قال رسول الله صلى الله عليه وسلم لو يعلم الناس ما في النداء والصف الأول ثم لم يجدوا إلا أن يستهموا عليه لاستهموا (صحيح البخاري رقم 615)

Hazrat Abu Hurayrah (Radhiyallahu Anhu) reports that Rasulullah (Sallallahu Alaihi Wasallam) said: “If the people only know the great reward of calling out the azaan and performing salaah in the first saff, and thereafter they could find no alternative (to decide who would be granted that honour) besides drawing lots, they would definitely draw lots to decide.”