Is it authentically reported that

Q: In Egyptian Masjids (mosques), people invoke peace and blessings upon the Prophet (peace be upon him) loudly immediately after Adhan (call to prayer), is this right?

A: The Sunnah of the Messenger (peace be upon him) tells us what one should say after the Adhan is finished. Jabir ibn `Abdullah (may Allah be pleased with him) narrated that the Messenger of Allah (peace be upon him) said: Whoever, after listening to the Adhan (call to Prayer) says: "O Allah, the Lord of this complete call and of this prayer, which is going to be established! Give Muhammad the right of intercession and superiority and send him (on the Day of Judgment) to the best and the highest place in Paradise which You promised him", will be granted intercession for him on the Day of Resurrection. Related by Ahmad, Al-Bukhari, Al-Tirmidhy, Al-Nasa'y, Abu Dawud and Ibn Majah. (Part No. 6; Page No. 106) It is also reported on the authority of `Abdullah ibn `Amr ibn Al-`As (may Allah be pleased with them both) that he heard the Prophet (peace be upon him) said: When you hear the Mu'adhdhin (caller to prayer), repeat what he says, then invoke blessings on me, for everyone who invokes blessings on me will receive ten blessings from Allah; then beg from Allah al-Wasilah for me, which is a rank in Paradise fitting for only one of Allah's servants, and I hope that I may be that one. Anyone who asks that I be given the Wasilah, will be assured of my intercession. Related by Ahmad, Muslim, Abu Dawud, Al-Tirmidhy and Al-Nasa'y. As for invoking peace and blessings upon the Prophet (peace be upon him) loudly immediately after the end of Adhan, it is an act of Bid`ah (innovation in religion).May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.