Sahih al-Bukhari 7196
صحيح البخاري#7196Sahihحَدَّثَنَا أَبُو الْيَمَانِ، أَخْبَرَنَا شُعَيْبٌ، عَنِ الزُّهْرِيِّ، أَخْبَرَنِي عُبَيْدُ اللَّهِ بْنُ عَبْدِ اللَّهِ، أَنَّ عَبْدَ اللَّهِ بْنَ عَبَّاسٍ، أَخْبَرَهُ أَنَّ أَبَا سُفْيَانَ بْنَ حَرْبٍ أَخْبَرَهُ أَنَّ هِرَقْلَ أَرْسَلَ إِلَيْهِ فِي رَكْبٍ مِنْ قُرَيْشٍ، ثُمَّ قَالَ لِتَرْجُمَانِهِ قُلْ لَهُمْ إِنِّي سَائِلٌ هَذَا، فَإِنْ كَذَبَنِي فَكَذِّبُوهُ. فَذَكَرَ الْحَدِيثَ فَقَالَ لِلتَّرْجُمَانِ قُلْ لَهُ إِنْ كَانَ مَا تَقُولُ حَقًّا فَسَيَمْلِكُ مَوْضِعَ قَدَمَىَّ هَاتَيْنِ.
Narrated `Abdullah bin `Abbas:That Abu Sufyan bin Harb told him that Heraclius had called him along with the members of a Quraish caravan and then said to his interpreter, "Tell them that I want to ask this (Abu Sufyan) a question, and if he tries to tell me a lie, they should contradict him." Then Abu Sufyan mentioned the whole narration and said that Heraclius said to the inter Peter, "Say to him (Abu Sufyan), 'If what you say is true, then he (the Prophet) will take over the place underneath my two feet
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: 93:57