'Amr b. Shu'aib on his father's authority said that his grandfather (Abdullah ibn Amr ibn al-'As):
The Prophet (ﷺ) said: There is no divorce except in what you possess; there is no possession, there is no sale transaction till you possess. The narrator Ibn as-Sabbah added: There is no fulfilling a vow till you possess.
وعن عائشة رضي الله عنها قالت: قال النبي صلى الله عليه وسلم : من نذر أن يطيع الله فليطعه ومن نذر أن يعصي الله فلا يعصه" ((رواه البخاري)).
‘Amr ibn Shu‘ayb reported from his father that his grandfather said that the Messenger of Allah (may Allah’s peace and blessings be upon him) said: “The son of Adam cannot make a vow concerning what is not his; he cannot free a slave who is not his; and he cannot divorce a woman who is not his…