It is narrated on the authority of 'Abdullah ibn' Umar (RA) that the Messenger of Allah (ﷺ) used to rise on every high ground on the way back from a battle or Hajj or 'Umrah and say three times:
اَللَّهُ أَكْبَرُ
Pronunciation
Allahu Akbar
Meaning
Allah is the Most Great.
Source: Bukhari: 1797
Duas from IslamicAPI's Masnun Dua dataset (based on the Quran, hadith, Hisnul Muslim and Rahe Belayat). See the dataset