Musnad Ahmad 1153:1283

'Abd al-Razzaq narrated to us, from Ma'mar, who said: Al-Zuhri said: 'Urwah informed me, from 'Aishah, who said: When twenty-nine nights had passed, the Messenger of Allah (peace and blessings of Allah be upon him) entered upon me. She said: He began with me, so I said: "O Messenger of Allah, you swore that you would not enter upon us for a month, and you have entered after twenty-nine [nights], I am counting them." He said: "The month is twenty-nine." Then he said: "O 'Aishah, I am going to mention a matter to you, so there is no harm upon you if you do not hasten in it until you consult your parents." Then he recited to me: {O Prophet, say to your wives} [Al-Ahzab: 28], until he reached, {a great reward} [Al-Ahzab: 29]. 'Aishah said: He knew that my parents would not order me to separate from him. She said: So I said: "Is it regarding this that I should consult my parents? For I desire Allah, His Messenger, and the Home of the Hereafter."