Allaahu ‘Akbar, Allaahu ‘Akbar, Allaahu ‘Akbar, Subhaanal-lathee sakhkhara lanaa haathaa wa maa kunnaa lahu muqrineen. Wa ‘innaa ‘ilaa Rabbinaa lamunqaliboon. Allaahumma ‘innaa nas’aluka fee safarinaa haathal-birrawattaqwaa, waminal-‘amalimaa tardhaa, Allaahumma hawwin ‘alaynaa safaranaa haathaa watwi ‘annaa bu’dahu, Allaahumma ‘Antas-saahibu fis-safari, walkhaleefatu fil-‘ahli, Allaahumma ‘innee ‘a’oothu bika min wa’thaa’is-safari, wa ka’aabanl-mandhari, wa soo’il-munqalabi fil-maaliwal’ahli.

Allah is the Most Great. Allah is the Most Great. Allah is the Most Great. Glory is to Him Who has provided this for us though we could never have had it by our efforts. Surely, unto our Lord we are returning. O Allah, we ask You on this our journey for goodness and piety, and for works that are pleasing to You . O Allah , lighten this journey for us and make its distance easy for us . O Allah, You are our Companion on the road and the One in Whose care we leave our family . O Allah , I seek refuge in You from this journey’s hardships, and from the wicked sights in store and from finding our family and property in misfortune upon returning.

(Upon returning recite the same again adding)

‘Aa’iboona, taa’iboona, ‘aabidoona, Lirabbinaa haamidoon.

We return repentant to our Lord, worshipping our Lord, and praising our Lord.

Reference: Muslim 2/978.

Source: https://www.islamawareness.net/Dua/Fortress/096.html