While returning from travel1 du'a
From every elevated point say Allāhu Akbar (Allah is the Most Great) three times and then recite: No...
يُكَبِّرُ عَلَى كُلِّ شَرَفٍ ثَلاَثَ تَكْبِيرَاتٍ ثُمَّ يَقُولُ: لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ لاَ …
"From every elevated point say Allāhu Akbar (Allah is the Most Great) three times and then recite: None has the right to …"