is saying (innaka la tukhliful mi’ad) in the dua after Adhaan is innovation?

This dua is to be recited after adhaan > Allahumma rabba hadhihi-d-da’awati-t-tammati wa-s-Salati-l-qa’imati, > ati Muhammadan il-wasilata wa-l-fadilata (wa-d-darajata-r-rafi’ati) > wa-b‘ath-hu maqamam mahmudan illadhi wa‘adtahu Reference : Sahih al-Bukhari 614 But almost everyone adds this extra verse when reciting that is not part of the dua. > (innaka la tukhliful mi’ad) I heard that this is an innovation, since it's not part of the dua. Like some say sadaqallahul azim after reciting Quran. So is saying **(innaka la tukhliful mi’ad)** with that dua an innovation?