Musnad Abi Ya'la 5513 — when the Messenger of Allah ﷺ returned

It is narrated from Sayyiduna Abdullah bin Umar (may Allah be pleased with them both) that when the Messenger of Allah (peace and blessings be upon him) returned from Hajj or Umrah, whenever he climbed onto an elevated stretch of ground or a mountain pass, he would say "Allahu Akbar" three times and then say: "'La ilaha illallahu wahdahu la sharika lah, lahul-mulku wa lahul-hamd, yuhyi wa yumit, wa huwa 'ala kulli shay'in qadir, ayibuna ta'ibuna, li-Rabbina hamidun, sadaqallahu wa'dah, wa nasara 'abdah, wa hazamal-ahzaba wahdah' (There is no god worthy of worship except Allah, alone, without any partner; to Him belongs the dominion and to Him belongs all praise; He alone gives life and He alone causes death, and He has complete power over all things. We are returning, repenting, and praising our Lord. Allah has fulfilled His promise, helped His servant, and on His own defeated all the confederates)."