Assalaamu alaikum, What is the best way of advising an elderly person who thinks he knows more than everyone? I want to point out some of the mistakes he makes but I do not want to be rude as I respect him. JazakAllahu khair

Ustadh AbdulAziz al-Haqqan
Well, you decide, does he listen to u or not? Also how about someone else who is older to advise him.