Is it permissible to invoke Allah''s

Q: Is it permissible to invoke peace and blessings upon the Prophet (peace be upon him) after finishing the Adhan (call to Prayer) taking into account that some so-called scholars encourage this act?

A: It was authentically established that `Abdullah ibn `Amr ibn Al-`As (may Allah be pleased with them both) heard the Messenger of Allah (peace be upon him) say, When you hear the Mu'adhin, 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 Jannah (Paradise) befitting for only one of Allah's servants, and I hope that I may be that one. (Part No. 6; Page No. 87) Anyone who asks that I be given the Wasilah, will be assured of my intercession. Narrated by the Six Hadith Compilers (Al-Bukhari, Muslim, Abu Dawud, Al-Tirmidhy, Al-Nasa'y, and Ibn Majah) except Al-Bukhari and Ibn Majah. It should be noted that a Mu'adhin (caller to Prayer) who invokes peace and blessings upon the Prophet loudly after finishing the Adhan commits a Bid`ah (innovation in religion).May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.