الكافي- ط الاسلامية, volume 3, page 304

11. Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hammad from al-Halabiy who has said the following: “He (the Imam) (a.s.), has said, ‘It is not harmful if a man says Adhan without Wudu’ but he does not say ‘Iqamah without it.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

12. Ali ibn Ibrahim has narrated from his father from Salih ibn Sa‘id from Yunus from ibn Muskan from abu Basir from who has said the following: “I once asked him (the Imam) (a.s.), about a man who joins an Imam when he is saying Salam. He (the Imam) said, ‘He is not required to repeat Adhan. He can join them with their Adhan, however if he finds them leaving, he then repeats Adhan.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.

13. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad from ibn al-Hassan ibn Ali from ‘Amr ibn Sa‘id from Musaddiq ibn Sadaqah from ‘Ammar al-Sabatiy who has said the following: “Once abu ‘Abd Allah (a.s.), was asked about Adhan if one who is not well versed can say Adhan. He (the Imam) said, ‘Adhan does not come right and it is not permissible to say Adhan unless one is a Muslim man and knowledgeable. If he knows Adhan he says it, if he is not well versed it is not permissible for him to say it or ‘Iqamah. One is not permitted to assign him to lead in Salah (prayer).’ He (the Imam) was asked about a man who says Adhan and ‘Iqamah so he can perform Salah (prayer) alone, and then another man comes and says, ‘Allow us to perform Salah (prayer) in congregation.’ Is it permissible that they perform Salah (prayer) with that Adhan and ‘Iqamah?’ He (the Imam) said, ‘No, but he says Adhan and ‘Iqamah.’”

Translation: Muhammad Sarwar·Thaqalayn link·The Arabic above is the original.