The ruling on placing a loudspeaker at the mosque entrance with the supplication for entering

Question:
In some mosques, and outside the mosque at its gate, there is a device that recites the transmitted supplication for entering the mosque. Is there any harm in placing it at mosque gates? And does it suffice for a person if he forgets?

Answer:
This is an act of excessive effort, and it discourages the supplication upon entering. It is an innovation, so this is not permissible. What is required of the Muslim is that it is recommended for him, when he intends to enter the mosque, to put his right foot forward and say: "In the name of Allah, I seek refuge in Allah the Great, and in His noble face and His ancient dominion, from Satan the outcast. O Allah, forgive my sins and open for me the gates of Your mercy." And when exiting, he puts his left foot forward and says this supplication, except for "and open for me the gates of Your mercy." Instead, he says: "Open for me the gates of Your favor." Yes.