The names of Hazrat Ubayy’s (ra) children were Tufail and Muhammad and their mother’s name was Umm Tufail bint Tufail, who belonged to the Daus tribe. It is stated that one of Hazrat Ubayy’s (ra) daughters’ name was Umm Amr.
(Ibn Saad, Al-Tabaqat al-Kubra, Vol. 3 [Beirut, Lebanon: Dar al-Kutub al-Ilmiyyah, 2017] 378)
This concludes the accounts relating to Hazrat Ubayy (ra).