On the authoority of 'Uqbah ibn 'Amir (may Allah be pleased wuth him), who said: I heard the Messenger of Allah (may the blessings and peace of Allah be upon him) say:
Your Lord delights at a shepherd who, on the peak of a mountain crag, give the call to prayer adn prays. Then Allah (glorified and exalted be He) says: Look at this servant of Mine, he gives the call to prayer and performs the prayers; he is in awe ofMe. I have forgiven My servant [his sins] and have admitted him to Paradise.
It was realted by an-Nasa'i witha good chain of authorities.