nsw police sources told daily mail australia a formal investigation is ` definitely ' under way into wednesday 's incident , friends of hafeez batthi , 33 , and his wife , khalida , 26 painted a picture of the islamic couple .
the couple were in sydney for just a day when they were abused by an unknown woman on an airport line train on wednesday afternoon that stacey eden , 23 , overheard the ranter insulting the muslim couple as ` isis terrorists ' and was recorded on video standing up for the couple .