Bayan Al-Hadith › Riyad as-Salihin › The Book of Etiquette of Traveling
Riyad as-Salihin 297رياض الصالحين 297
وعن ابن عمر رضي الله عنهما قال: كان النبي صلى الله عليه وسلم وجيوشه إذا علو الثنايا كبروا، وإذا هبطوا سبحوا. ((رواه أبو داود بإسناد صحيح.
Ibn 'Umar (May Allah be pleased with them) reported: Whenever the Prophet (ﷺ) and his army ascended a height, they would proclaim: "Allahu Akbar (Allah is Greatest)," and when they climbed down, they would proclaim: "Subhan Allah (Allah is free from imperfection).".
Chain of narrators
عبد الله بن عمر
Ibn `Umar