Sahih al-Bukhari, Book 83, Hadith 69 (In-Book) ⓘ
Narrated Sa`id bin Al-Harith: that he heard Ibn `Umar saying, "Weren't people forbidden to make vows?" The Prophet said, 'A vow neither hastens nor delays anything, but by the making of vows, some of the wealth of a miser is taken out."
حَدَّثَنَا يَحْيَى بْنُ صَالِحٍ، حَدَّثَنَا فُلَيْحُ بْنُ سُلَيْمَانَ، حَدَّثَنَا سَعِيدُ بْنُ الْحَارِثِ، أَنَّهُ سَمِعَ ابْنَ عُمَرَ ـ رضى الله عنهما ـ يَقُولُ أَوَلَمْ يُنْهَوْا عَنِ النَّذْرِ إِنَّ النَّبِيَّ صلى الله عليه وسلم قَالَ " إِنَّ النَّذْرَ لاَ يُقَدِّمُ شَيْئًا، وَلاَ يُؤَخِّرُ، وَإِنَّمَا يُسْتَخْرَجُ بِالنَّذْرِ مِنَ الْبَخِيلِ " .
also referenced under: Hadith 6692 (DarusSalam) & Volume 8, Book 78, Hadith 683 (USC-MSA)