Sahih Bukhari Volume 3, Book 26, Hadith 1798

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ رضى الله عنهما أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم كَانَ إِذَا قَفَلَ مِنْ غَزْوٍ أَوْ حَجٍّ أَوْ عُمْرَةٍ يُكَبِّرُ عَلَى كُلِّ شَرَفٍ مِنَ الأَرْضِ ثَلاَثَ تَكْبِيرَاتٍ، ثُمَّ يَقُولُ ‏"‏ لاَ إِلَهَ إِلاَّ اللَّهُ وَحْدَهُ لاَ شَرِيكَ لَهُ، لَهُ الْمُلْكُ، وَلَهُ الْحَمْدُ، وَهُوَ عَلَى كُلِّ شَىْءٍ قَدِيرٌ، آيِبُونَ تَائِبُونَ عَابِدُونَ سَاجِدُونَ لِرَبِّنَا حَامِدُونَ، صَدَقَ اللَّهُ وَعْدَهُ وَنَصَرَ عَبْدَهُ وَهَزَمَ الأَحْزَابَ وَحْدَهُ ‏"‏‏

Narrated By 'Abdullah bin 'Umar : Whenever Allah's Apostle returned from a Ghazwa, Hajj or 'Umra, he used to say Takbir thrice at every elevation of the ground and then would say, "None has the right to be worshipped but Allah; He is One and has no partner. All the kingdoms is for Him, and all the praises are for Him, and He is Omnipotent. We are returning with repentance, worshipping, prostrating, and praising our Lord. He has kept up His promise and made His slave victorious, and He Alone defeated all the clans of (non-believers)."