Have a safe trip home!
Tutus trinus for safe trip.
Have a safe trip - Ia manuia lou malaga.
safe trip is literally veilige reis you can also say that he should have 'een goede reis' (what is a good trip)
You didn't say in which language, so I doubt I can help you with this question. In English, it is said correctly: Have a safe trip!
Jo shim hae
Bon voyage !