It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that when the Prophet (peace and blessings be upon him) returned from Hajj, Jihad, or Umrah, whenever he ascended a high place on the land, he would say Allahu Akbar three times and recite this supplication: "Allah is the Greatest, Allah is the Greatest, there is no deity except Allah, He is alone, He has no partner, to Him belongs the dominion and to Him belongs all praise, and He has power over all things. We are returning in repentance, in prostration, in worship, and in praise of our Lord. Allah has fulfilled His promise, helped His servant, and defeated all the armies alone."