Musannaf Ibn Abi Shaybah

Hazrat Yazid says that a man asked Hazrat Ibn Abi Laila, "If I enter the mosque and the people have already performed the prayer, should I give the adhan?" He replied, "The adhan and iqamah of the people is sufficient for you."

Hasan says that if a person goes to the mosque and the prayer has already been performed, then he will not say the adhan and iqamah.

Hazrat Abdullah bin Yazid says that I entered the mosque of Muharib with Ibrahim, he led me in prayer and neither gave the adhan nor the iqamah.

Hazrat Hisham bin Urwah narrates that a man came to the mosque after the people had already performed the prayer. He began to say the iqamah, so Hazrat Urwah said, "Wait, we have already said the iqamah."

Hazrat Aamir, Hazrat Mujahid, and Hazrat Ikrimah say that when a person enters the mosque and the prayer has already been performed in it, he should neither call the adhan nor the iqamah.