(170) باب فِي التَّكْبِيرِ عَلَى كُلِّ شَرَفٍ فِي الْمَسِيرِ
'Abd Allah bin 'Umar said "When the Apostle of Allaah(ﷺ) returned from an expedition, Hajj or 'Umrah on every rising piece of ground he would say three times "Allaah is Most Great" and he would say "There is no god bt Allaah alone who has no partner, to Whom the dominion belongs, to Whom praise is due, and Who is Omnipotent, serving, prostrating ourselves before our Lord and expressing praise. Allaah alone has kept his word, helped His servant and routed the confederate.
Reference: Sunan Abi Dawud 2770
In-book reference: Book 15, Hadith 294
English translation: Book 14, Hadith 2764