(24) باب النَّهْىِ عَنِ النَّذْرِ،
It was narrated from 'Abdullah bin 'Umar that the Messenger of Allah forbade vows and said:
"They do not bring any good; they are just a means of taking wealth from the miserly." (DE)
Reference (DE): Sunan an-Nasa'i 3801 (DE)
In-book reference (DE): Book 35, Hadith 41 (DE)
English translation (DE): Vol. 4, Book 35, Hadith 3832 (DE)