From Sahih Muslim (Hadith 6271):
Abdullah b. Ja`far reported that he heard `Ali say in Kufa that Allah's Messenger (ﷺ) said:The best of the women of her time was Mary, daughter of `Imran, and the best of the women of her time was Khadija, daughter of Khuwailid. Abu Kuraib said that Waki` pointed towards the sky and the earth
Reference: Muslim 6271