What is the ruling on communal remembrance (dhikr) after prayer, as is the case in Bosnia?

If the collective dhikr (remembrance of Allah) after prayer involves the congregation repeating the dhikr word for word, such as one person saying "Subhan Allah" and they all repeat it, this was not reported from the Messenger of Allah, peace and blessings be upon him, nor his Companions. Had it been good, it would have reached us. Therefore, it is an innovation (muhdath), and every innovation is a bid'ah (heresy), and every bid'ah is misguidance. One must avoid this type of dhikr and adhere to what is established in the Sunnah.