It is narrated from the Mother of the Believers, Sayyidah Aishah (may Allah be pleased with her), that the Prophet (peace and blessings be upon him) said: "A woman is like a rib: if you try to make her completely straight, you will break her, and if you leave her (as she is), you will benefit from her despite her crookedness."
Hadith Referenceالمعجم الأوسط / باب الألف / 968
Hadith Takhrij«أخرجه أحمد فى «مسنده» برقم: 27026، والبزار فى «مسنده» برقم: 57 / 34»