Musnad Ahmad 1153:465

Ibrahim ibn Ishaq narrated to us, he said: Ibn al-Mubarak narrated to us, from Usamah ibn Zayd, from Safwan ibn Sulaym, from Urwah, from Aisha, that the Messenger of Allah, peace and blessings of Allah be upon him, said: "Indeed, among the blessings of a woman is the ease of her engagement, the ease of her dowry, and the ease of her womb."