Should recite 'Starting a Journey' dua and then should recite the following,
Aa’iboona thaa’iboona ‘aabidhoona lirabbina hamidhoon
آيِبُوْنَ تَائِبُوْنَ عَابِدُوْنَ لِرَبّنَا حَامِدُوْنَ
Meaning:
(We are those) who return, who repent, who worship our Lord, who praise (Him)
(Muslim 2392)