Here's the answer:
“いってらっしゃい”
(itterasshai)
Watch a real native speaker say it:
Here's how it sounds in a textbook:
Fun fact: the hundreds of thousands of people learning Japanese with Memrise get this phrase correct 85.61% of the time!
(itterasshai)
Fun fact: the hundreds of thousands of people learning Japanese with Memrise get this phrase correct 85.61% of the time!