"Whoever vows to obey Allah, let him obey Him, and whoever vows to disobey Allah, let him not disobey Him. "
Sunan Ibn Majah Book 11, Hadith 37
← Previous Hadith "There is no vow to commit disobedience, and the expiation (for such a vow) is the expiation for breaking an oath."

Sunan Ibn Majah Book 11, Hadith 36 Next Hadith → "Whoever makes a vow and does not state it specifically, the expiation (for such a vow) is the expiation for breaking an oath. "

Sunan Ibn Majah Book 11, Hadith 38