Saying Takbir and Tasbih While Travelling

قَالَ جَابِرٌ رضي الله عنه: ((كُنَّا إِذَا صَعَدْنَا كَبَّرْنَا، وَإِذَا نَزَلْنَا سَبَّحْنَا)).

Jabir (may Allah be pleased with him) said: "Whenever we ascended [a height], we would say Takbir (Allahu Akbar), and whenever we descended, we would say Tasbih (Subhan Allah)."