اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ
Allahu Akbar, Allahu Akbar, Allahu Akbar
Allah is the Greatest, Allah is the Greatest, Allah is the Greatest. (Said when ascending a hill or taking off.)
Jabir (RA) said: "When we ascended, we would say Allahu Akbar, and when we descended, we would say SubhanAllah." The logic is beautiful: ascending brings you closer to the sky, so you declare Allah's greatness; descending reminds you of His perfection, so you glorify Him.
Related Du'as
اللَّهُمَّ إِنَّا نَسْأَلُكَ فِي سَفَرِنَا هَذَا الْبِرَّ وَالتَّقْوَى وَمِنَ الْعَمَلِ مَا تَرْضَى
O Allah, we ask You in this journey of ours for righteousness and piety, and for deeds that are pleasing to You.
Sahihاللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ وَعْثَاءِ السَّفَرِ وَكَآبَةِ الْمَنْظَرِ وَسُوءِ الْمُنْقَلَبِ فِي الْمَالِ وَالْأَهْلِ
O Allah, I seek refuge in You from the hardships of travel, depressing sights, and a bad return regarding wealth and family.
Sahihأَسْتَوْدِعُ اللَّهَ دِينَكَ وَأَمَانَتَكَ وَخَوَاتِيمَ عَمَلِكَ
I entrust to Allah your religion, your trusts, and the conclusions of your deeds.
Sahihاللَّهُمَّ هَوِّنْ عَلَيْنَا سَفَرَنَا هَذَا وَاطْوِ عَنَّا بُعْدَهُ
O Allah, make this journey easy for us, and fold up its distance for us.
Sahih