(a) It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Whoever gives the call to prayer (adhan) for twelve years, Paradise becomes obligatory for him, and for his adhan each time sixty good deeds are recorded for him, and for his iqamah thirty good deeds."
(b) Abu Abdullah (may Allah have mercy on him) said: This hadith is sahih (authentic). (c) The Shaykh said: Yahya bin al-Mutawakkil narrated it from Ibn Jurayj, from someone who narrated it to him, from Nafi'. Al-Bukhari said: This is more likely (correct). (d) It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Whoever gives the adhan for twelve years, Paradise becomes obligatory for him, and he will receive 60 good deeds for every adhan and thirty good deeds for every iqamah."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصلاة / 2038