Yahya related to me from Malik that he had heard that Abdullah ibn Umar and Abu Hurayra were asked about a man who gave his wife power over herself, and she returned it to him without doing anything with it. They said that there was no divorce. (i.e. The man's giving his wife power over herself was not interpreted as a desire for divorce on his part.)
Muwatta Malik Book 29, Hadith 16
← Previous Hadith Yahya related to me from Malik from Abd ar-Rahman ibn al-Qasim from his father that A'isha, the wife of the Prophet, may Allah bless him and grant him peace, gave Hafsa bint Abd arRahman in marriage to al-Mundhir ibn az-Zubayr while Abd ar-Rahman was away in Syria. When Abd ar-Rahman arrived, he said, "Shall someone like me have this done to him? Am I the kind of man to have something done to him without his consent?" A'isha spoke to al-Mundhir ibn az-Zubayr, and al-Mundhir said, "It is in the hands of Abd ar-Rahman." Abd ar-Rahman said, "I won't oppose something that you have already completed." Hafsa was confirmed with al-Mundhir, and there was no divorce.

Muwatta Malik Book 29, Hadith 15 Next Hadith → Yahya related to me from Malik from Yahya ibn Said that Said ibn al-Musayyab said, "If a man gives his wife authority over herself, and she does not separate from him and remains with him, there is no divorce."

Malik said that a woman whose husband gave her power over herself and they separated while she was unwilling, had no power to revoke the divorce. She only had power over herself as long as they remained together.

Muwatta Malik Book 29, Hadith 17