says who?
US /ˈsɛz huː/
UK /ˈsɛz huː/

1.
من قال؟, من يزعم ذلك؟
used to express doubt or disagreement with a statement, implying that the source of the information is questionable or lacks authority
:
•
You can't do that. Says who?
لا يمكنك فعل ذلك. من قال؟
•
They told me I'm not allowed to enter. Says who?
قالوا لي إنه لا يُسمح لي بالدخول. من قال؟