Sahih al-Bukhari 6693
صحيح البخاري#6693Sahihحَدَّثَنَا خَلاَّدُ بْنُ يَحْيَى، حَدَّثَنَا سُفْيَانُ، عَنْ مَنْصُورٍ، أَخْبَرَنَا عَبْدُ اللَّهِ بْنُ مُرَّةَ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، نَهَى النَّبِيُّ صلى الله عليه وسلم عَنِ النَّذْرِ وَقَالَ " إِنَّهُ لاَ يَرُدُّ شَيْئًا، وَلَكِنَّهُ يُسْتَخْرَجُ بِهِ مِنَ الْبَخِيلِ ".
Narrated `Abdullah bin `Umar:The Prophet (ﷺ) forbade the making of vows and said, "It (a vow) does not prevent anything (that has to take place), but the property of a miser is spent (taken out) with it
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: 83:70