Musnad Ahmad 31:394

Muhammad ibn al-Sabah narrated to us, Ismail ibn Zakariya narrated to us, from Suhayl, from Sa’id ibn Abd al-Rahman ibn Mukammal, from Ayyub ibn Bashir al-Ansari, from Abu Sa’id al-Khudri, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "There is no one who has three daughters, or three sisters, or two daughters, or two sisters, and he fears Allah regarding them and treats them well, except that he will enter Paradise."