Sahih Muslim Book 9, Hadith Number 3498.

Chapter: Mere giving of option of divorce to women does not make divorce effective, but when it is really intended.

‘Aisha (Allah be pleased with her) reported: When the Messenger of Allah (may peace be upon him) was commanded to give option to his wives, he started it from me saying: I am going to mention to you a matter which you should not (decide) in haste until you have consulted your parents. She said that he already knew that my parents would never allow me to seek separation from him She said: Then he said: Allah, the Exalted and Glorious, said: Prophet, say to thy wives: If you desire this world’s life and its adornment, then come, I will give you a provision and allow you to depart a goodly departing; and if you desire Allah and His Messenger and the abode of the Hereafter, then Allah has prepared for the doers of good among you a great reward She is reported to have said: About what should I consult my parents, for I desire Allah and His Messenger and the abode of the Hereafter? She (‘Aisha) said: Then all the wives of Allah’s Messenger (may peace be upon him) did as I had done.