Ruling on making Dhikr and reciting Ayat-ul-Kursy loudly after Salah

Fatwa no. 8740 In Damascus, at one of its Masjids (mosques), after every obligatory Salah, a person is entrusted with reciting Ayat-ul-Kursy (the Qur’anic Verse of the Throne, Surah Al-Baqarah, 2:255) loudly, Surah Al-Ikhlas (112) and Mu`awwidhatayn (Surahs Al-Falaq and Al-Nas). Once this person finishes the recitation, every one who offered Salah re-recites Ayat-ul-Kursy and the Mu`awwidhatayn altogether.Is the Prophet (peace be upon him) reported to have done so, or is it a Bid`ah (innovation in religion)?Knowing that the Prophet (peace be upon him) is authentically reported to have recited Ayat-ul-Kursy and the Mu`awwidhatayn after Salah, should I do as they do and do this regularly? Is it permissible for a person who is offering obligatory Salah to recite Ayat-ul-Kursy or other verses loudly with the intention of teaching those who do not know how to recite Ayat-ul-Kursy and the Mu`awwidhatayn?

(Part No. 2; Page No. 467) A: It is impermissible for a certain person who is offering Salah or for all of those offering Salah to recite the above-mentioned verses after the Salah loudly; not even with the intention of teaching. Rather, it is a Bid`ah as the Prophet (peace be upon him) is not authentically reported to have ever done so. Moreover, the Prophet (peace be upon him) is authentically reported to have said: If somebody innovates something which is not in harmony with the principles of our religion, that thing is rejected. Recorded by Al-Bukhari and Muslim. Consequently, you should not behave according to their Bid`ah. Rather, you are to deny it and try to make clear the truth of what they do as much as possible with wisdom and good instruction. Allah (Exalted be He) said: Invite (mankind, O Muhammad صلى الله عليه و سلم) to the Way of your Lord (i.e. Islâm) with wisdom (i.e. with the Divine Revelation and the Qur’ân) and fair preaching, and argue with them in a way that is better. Furthermore, the Prophet (peace be upon him) is authentically reported to have said: Whoever among you sees something abominable should rectify it with his hand; and if he has not strength enough to do it, then he should do it with his tongue; and if he has not strength enough to do it, (even) then he should (abhor it) from his heart, and that is the least of faith.