(41) باب كَفَّارَةِ النَّذْرِ .
It was narrated from Muhammad bin Az-Zubair, from his father, from a man from the inhabitants of Al-Basrah, who said:
"I accompanied 'Imran bin Husain, who said: 'I heard the Messenger of Allah say: Vows are of two types: A vow that is made to do an act of obedience to Allah; that is for Allah and must be fulfilled, and a vow that is made to do an act of disobedience to Allah; that is for Shaitan and should not be fulfilled, and its expiation is the expiation for an oath.'"
Reference: Sunan an-Nasa'i 3845
In-book reference: Book 35, Hadith 85
English translation: Vol. 4, Book 35, Hadith 3876