The Messenger of Allah said: "Whoever calls the Adhan for twelve years, he will be guaranteed Paradise, and for each day sixty Hasanat (good deeds) will be recorded for him by virtue of his Adhan, and thirty Hasanat by virtue of his Iqamah."
أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مَنْ أَذَّنَ ثِنْتَىْ عَشْرَةَ سَنَةً وَجَبَتْ لَهُ الْجَنَّةُ وَكُتِبَ لَهُ بِتَأْذِينِهِ فِي كُلِّ يَوْمٍ سِتُّونَ حَسَنَةً وَلِكُلِّ إِقَامَةٍ ثَلاَثُونَ حَسَنَةً