Sunan Abi Dawud 3251
سنن أبي داود#3251Sahihحَدَّثَنَا مُحَمَّدُ بْنُ الْعَلاَءِ، حَدَّثَنَا ابْنُ إِدْرِيسَ، قَالَ سَمِعْتُ الْحَسَنَ بْنَ عُبَيْدِ اللَّهِ، عَنْ سَعْدِ بْنِ عُبَيْدَةَ، قَالَ سَمِعَ ابْنُ عُمَرَ، رَجُلاً يَحْلِفُ لاَ وَالْكَعْبَةِ فَقَالَ لَهُ ابْنُ عُمَرَ إِنِّي سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ " مَنْ حَلَفَ بِغَيْرِ اللَّهِ فَقَدْ أَشْرَكَ " .
Sa'id ibn Ubaydah said:Ibn Umar heard a man swearing: No, I swear by the Ka'bah. Ibn Umar said to him: I heard the Messenger of Allah (ﷺ) say: He who swears by anyone but Allah is polytheist
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: 22:10