Sahih al-Bukhari 2456
صحيح البخاري#2456Sahihحَدَّثَنَا أَبُو النُّعْمَانِ، حَدَّثَنَا أَبُو عَوَانَةَ، عَنِ الأَعْمَشِ، عَنْ أَبِي وَائِلٍ، عَنْ أَبِي مَسْعُودٍ، أَنَّ رَجُلاً، مِنَ الأَنْصَارِ يُقَالُ لَهُ أَبُو شُعَيْبٍ كَانَ لَهُ غُلاَمٌ لَحَّامٌ فَقَالَ لَهُ أَبُو شُعَيْبٍ اصْنَعْ لِي طَعَامَ خَمْسَةٍ لَعَلِّي أَدْعُو النَّبِيَّ صلى الله عليه وسلم خَامِسَ خَمْسَةٍ. وَأَبْصَرَ فِي وَجْهِ النَّبِيِّ صلى الله عليه وسلم الْجُوعَ ـ فَدَعَاهُ، فَتَبِعَهُمْ رَجُلٌ لَمْ يُدْعَ فَقَالَ النَّبِيُّ صلى الله عليه وسلم " إِنَّ هَذَا قَدِ اتَّبَعَنَا أَتَأْذَنُ لَهُ ". قَالَ نَعَمْ.
Narrated Abu Mas`ud:There was an Ansari man called Abu Shu'aib who had a slave butcher. Abu Shu'aib said to him, "Prepare a meal sufficient for five persons so that I might invite the Prophet (ﷺ) besides other four persons." Abu Shu'aib had seen the signs of hunger on the face of the Prophet (ﷺ) and so he invited him. Another man who was not invited, followed the Prophet. The Prophet (ﷺ) said to Abu Shu'aib, "This man has followed us. Do you allow him to share the meal?" Abu Shu'aib said, "Yes
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: 46:17