Musannaf Ibn Abi Shaybah 19355 — Mutual release (mubara'ah) counting

Ja'far said: I said to Abd al-Karim: It has reached me that al-Zuhri (may Allah have mercy on him) used to say that mubara'ah is the most severe kind of divorce. He said: When the man takes something from her with which she ransoms herself, we regard it as nothing other than equivalent to khul'.