Sahih al-Bukhari 1797
صحيح البخاري#1797Sahihحَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ ـ رضى الله عنهما ـ 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 `Abdullah bin `Umar:Whenever Allah's Messenger (ﷺ) 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 kingdom 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 (nonbelievers)
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 26:22