What is the ruling on saying “Good Morning/afternoon/evening/night” along with the proper salaams?
Shaikh Bin Baz rahimahullah said it (saying those phrases) good morning/good evening, how are you doing, etc should be said after the salaam, but not replacing (the salaam). (The reference can be) found here.
Also, the Lajnah said there is nothing wrong saying after the salam found here
~ Faisal Ibn Abdul Qaadir Ibn Hassan