Hadith about Friday Prayer

Bukhari :: Book 2 :: Volume 13 :: Hadith/36

Narrated As-Saib bin Yazid:

The person who increased the number of Adhans for the Jumua prayers to three was Uthman bin Affan and it was when the number of the (Muslim) people of Medina had increased. In the life-time of the Prophet there was only one Muadh-dhin and the Adhan used to be pronounced only after the Imam had taken his seat (i.e. on the pulpit).

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Bukhari :: Book 2 :: Volume 13 :: Hadith/ 37

Narrated Abu Umama bin Sahl bin Hunaif:

I heard Muawiya bin Abi Sufyan (repeating the statements of the Adhan) while he was sitting on the pulpit. When the Muadh-dhin pronounced the Adhan saying, "Allahu-Akbar, Allahu Akbar", Muawiya said: "Allah Akbar, Allahu Akbar." And when the Muadh-dhin said, "Ash-hadu an la ilaha illal-lah (I testify that none has the right to be worshipped but Allah)", Muawiya said, "And (so do) I". When he said, "Ash-hadu anna Muhammadan Rasulullah" (I testify that Muhammad is Allah's Apostle), Muawiya said, "And (so do) I". When the Adhan was finished, Muawiya said, "O people, when the Muadh-dhin pronounced the Adhan I heard Allah's Apostle on this very pulpit saying what you have just heard me saying

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Bukhari :: Book 2 :: Volume 13 :: Hadith/ 38

Narrated As-Sa'ib bin Yazid I :

'Uthman bin 'Affan introduced the second Adhan on Fridays when the number of the people in the mosque increased. Previously the Adhan on Fridays used to be pronounced only after the Imam had taken his seat (on the pulpit).