الكافي- ط الاسلامية, volume 3, page 307

27. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn abu Najran in a marfu‘ manner who has said the following: “Three things on the Day of Judgment are on sands of musk. One of them is one who says Adhan just for the sake of Allah.”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

28. Muhammad has narrated from Ahmad from al-Husayn ibn Sa‘id from al-Nadr ibn Suwayd from Yahya ibn ‘Imran al-Halabiy from Muhammad ibn Marwan who has said the following: “I heard abu ‘Abd Allah (a.s.), say, ‘One who recites Adhan receives forgiveness for the sins as big as the space his voice fills and everything hearing him bears witness to this fact.’” (Ahadith 9-28 are best expressed in the form of fatwa.)

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

29. Muhammad ibn ’Isma‘il has narrated from al-Fadl ibn Shadhan from Hammad ibn ‘Isa from Rib‘i ibn ‘Abd Allah from Muhammad ibn Muslim who has said the following: “Abu Ja’far (a.s.), has said, ‘When someone recited Adhan, the Messenger of Allah on hearing him would say everything the person reciting Adhan would say.”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

30. Ali ibn Muhammad has narrated from Sahl ibn Ziyad from ibn Mahbub from Jamil ibn Salih from al-Harith ibn al-Mughirah al-Nadriy who has said the following: “Abu ‘Abd Allah, ‘Alayhi al-Salam, has said that one may hear someone recite Adhan and say, ‘I testify that no one deserves to be worshipped except Allah and I testify that Muhammad is the Messenger of Allah and I affirm and acknowledge.’ If he also says, ‘I testify that no one deserves to be worshipped except Allah and that Muhammad is the Messenger of Allah and I consider them both sufficient for me against all who deny and reject these (the two testimonies). I seek assistance from those who affirm and testify to the two testimonies.’ His reward is equal to the number of those who have denied and rejected them and those who have affirmed and testified to these testimonies.”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.

31. Ali ibn Muhammad has narrated from Sahl ibn Ziyad from ibn Mahbub from ‘Abd Allah ibn Sinan who has said the following: “Abu ‘Abd Allah (a.s.), has said that the height of the wall of the Masjid of the Messenger of Allah was equal to the height of a man. He, the Messenger of Allah would say to Bilal, ‘When time comes, O Bilal, climb on the wall and raise your voice with Adhan. Allah has assigned a wind to raise Adhan to the heaven and that the angels upon hearing Adhan from the people of earth say, “This is the voice of the followers of Prophet Muhammad about oneness of Allah, the Most Majestic, the Most Glorious.” They ask forgiveness for the followers of Muhammad, O Allah grant compensation to Muhammad and his family worthy of their services to Your cause, until they complete that prayer.’”

Translation: Muhammad Sarwar — attributed by Thaqalayn·The Arabic above is the original.