Chapter on Vows
A vow is disliked; it brings no benefit and does not ward off destiny.
It becomes binding only when uttered by a legally accountable person acting of his own free will.
There are six categories of binding vows, each with its own ruling:

1. The unrestricted vow, as when someone says, “I owe Allah a vow.” In that case he must offer the expiation for a broken oath. The same applies if he says, “A vow is binding on me if I do such-and-such,” and then carries it out.3
2. A vow made out of obstinacy or anger, such as saying, “If I speak to you,” or “If I do not give you,” or “If this matter is such-and-such, then pilgrimage is incumbent on me, or the emancipation of a slave, or fasting for a year, or my entire wealth…”