Musnad Ahmad 31:765

Ali ibn Abdullah narrated to us, Abd al-Rahman ibn Mahdi narrated to us, Muhammad narrated to us, from Sa’d ibn Ishaq, from his paternal aunt, from Abu Sa’id al-Khudri, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "A woman is married for one of three qualities: a woman is married for her wealth, a woman is married for her beauty, and a woman is married for her religion. So take the one who possesses religion and character, may your hands be covered in dust (i.e., may you prosper)."