AhsanAllahu ilaykum Can i raise hands while making dua before tasleem in salah or is this bidah pls with evidence JazakAllahu khayran

In the Salah, we do not do anything without evidence that the Prophet (sallallahu alayhi wa sallam) commanded it or did it. So, if you have evidence for this, bring the Hadith and let's take a look at it. If there is no evidence for it—or anything else that anybody tells you to do or you see people doing—if they don't have evidence for it, then don't do it.