Sahih al-Bukhari 4311
صحيح البخاري#4311Sahihحَدَّثَنِي إِسْحَاقُ بْنُ يَزِيدَ، حَدَّثَنَا يَحْيَى بْنُ حَمْزَةَ، قَالَ حَدَّثَنِي أَبُو عَمْرٍو الأَوْزَاعِيُّ، عَنْ عَبْدَةَ بْنِ أَبِي لُبَابَةَ، عَنْ مُجَاهِدِ بْنِ جَبْرٍ الْمَكِّيِّ، أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ ـ رضى الله عنهما ـ كَانَ يَقُولُ لاَ هِجْرَةَ بَعْدَ الْفَتْحِ.
Narrated Mujahid bin Jabr:`Abdullah bin `Umar used to say, "There is no migration after the Conquest (of Mecca)
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: 64:342