Abdullah bin Umar reported,

Whenever the Messenger of Allah ﷺ returned from a military campaign, a Hajj, or an Umrah, and ascended a high point of land or an elevation, he would say, "Allah is the greatest, Allah is the greatest. There is no god but Allah alone, with no partner. To Him belongs the dominion and to Him belongs all praise, and He has power over all things. Returning, repenting, prostrating, worshipping, and praising our Lord. Allah has fulfilled His promise, granted victory to His servant, and defeated the confederates alone."

Ahmad 4636

Sahih

حدثنا إسماعيل بن إبراهيم أخبرنا أيوب عن نافع

عن ابن عمر قال

كان رسول الله ﷺ إذا قفل من غزو أو حج أو عمرة فعلا فدفدا من الأرض أو شرفا قال الله أكبر الله أكبر لا إله إلا الله وحده لا شريك له له الملك وله الحمد وهو على كل شيء قدير آيبون تائبون ساجدون عابدون لربنا حامدون صدق الله وعده ونصر عبده وهزم الأحزاب وحده

أحمد 4636صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Abdullah bin Umar
Numbering
Darussalam 4636
Ahmad 4636