Musnad Ahmad 30:2397

Yahya narrated to us, from Ibn ‘Ajlan, who said: I heard my father narrating from Abu Hurayrah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "The woman is like a rib; if you strive to straighten it, you will break it, and if you leave it, you will enjoy it while it has crookedness."