Tribe
Banū ʿĀmir ibn Ṣaʿṣaʿa
بنو عامر بن صعصعة
Najd
Major Hawāzin tribe. Maymūna bint al-Ḥārith, the Prophet's ﷺ last wife, was from Banū Hilāl, a sub-tribe.
Sources: Wikipedia and classical Islamic biographical literature compiled by automated researchers.