Sunan Abi Dawud 1902
سنن أبي داود#1902Sahihحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا خَالِدُ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا إِسْمَاعِيلُ بْنُ أَبِي خَالِدٍ، عَنْ عَبْدِ اللَّهِ بْنِ أَبِي أَوْفَى، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم اعْتَمَرَ فَطَافَ بِالْبَيْتِ وَصَلَّى خَلْفَ الْمَقَامِ رَكْعَتَيْنِ وَمَعَهُ مَنْ يَسْتُرُهُ مِنَ النَّاسِ فَقِيلَ لِعَبْدِ اللَّهِ أَدَخَلَ رَسُولُ اللَّهِ صلى الله عليه وسلم الْكَعْبَةَ قَالَ لاَ .
‘Abd Allaah bin Abi Aufa said the Apostle of Allaah(ﷺ) performed ‘Umrah and went round the House(the Ka’bah) and prayed behind the station (Maqam Ibrahim) two rak’ahs and he was accompanied by so many people that he was hidden by them. ‘Abd Allaah bin Abi Aufa was asked Did the Apostle of Allaah(ﷺ) enter the Ka’bah ? He replied “No”
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:
In-book reference: 11:182