لسلام عليكم ورحمة الله وبركاته, احسن الله اليك some people say that saying any dhikr after prayer isn’t bid'ah, what is the correct opinion regarding this matter, and why? بارك الله فيك

Ustadh AbdulAziz al-Haqqan
How? If you link a certain thikr and call it a sunnah for every salah and it is not, this is a bidd'ah