A non Muslim invited a Muslim to his house and gave him Grapes ,
the Muslim ate them ,
then he invited the muslim to a cup of wine ,
the muslim refused ,
... The non muslim asked him how did u Muslims forbidden wine and ate grapes although the wine came from grapes ,
The muslim replied 'Do u have a daughter' ,
He said yes ,
The muslim asked him 'could u marry her' ,
The non muslim said no ,
The muslim said subhan Allah ,
u marry her mother and can't marry her although this came from this too :)