Prophet Muhammad (PBUH) urges his followers to mention Allah at every situation, He used to mention Allah when riding his sumpter as narrated on the authority of `Ali ibn Rabi`ah who said: I saw `Ali ibn Abi Talib bringing a sumpter to mount it, when he put his leg in the stirrup, he said: in the name of Allah, thrice. When he sat firmly on it, he said: praise be to Allah, then he recited the verses: " Exalted is He who has subjected this to us, and we could not have [otherwise] subdued it. And indeed we, to our Lord, will [surely] return.", Az-Zukhruf 13, 14, then he said for thrice, "praise be to Allah", "Allah is the greatest" , and " Exalted are You, indeed I have wronged myself, so forgive me, as none forgives the sins except You", then `Ali laughed. I asked him: O Emir of the believers? What made you laugh?! He replied: I saw the Prophet did the same and laughed, so I asked the Prophet: O Messenger of Allah! What made you laugh?! The Prophet replied: "Allah Almighty loves His Servants when they say: O Lord! Forgive our sins as none but You forgive them" related by At-Tirmidhi, and authenticated by Al-Albani

This is a wonderful Prophetic Sunnah where the Muslim mentions Allah with many invocations, and herein we invoke Allah with a supplication He, Almighty, loves.

How easy and grand is this Sunnah!

We should observe this Sunnah when we ride cars, airplanes, elevators, animals, or any other means of transport.