Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates: When the Messenger of Allah (peace and blessings be upon him) returned from a journey and passed by a raised level plain or a high place, he would say the takbir three times, then say: "There is none worthy of worship except Allah, alone, without partner; His is the dominion and His is all praise, and He has power over all things." Then he would say: "We are returning, repenting, worshipping, prostrating, praising our Lord. Allah has fulfilled His promise, helped His servant, and alone defeated the confederates."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 13314