Salmā bint Sakhar (Arabic: سلمى بنت صخر) was the mother of Abū Bakr, the first Caliph. Salmā was the daughter of Sakhar (Arabic: صخر) and the wife of ʻUthmān ibn-Amīr (later known as Abū Qahafa).
Sunnis honour her as Ummu l-Khayr "Mother of Goodness" (Arabic: أم الخير), referring to Abū Bakr, whom Muslims honour as and one of the The Ten Promised Paradise among Muhammad's early companions, the Sahāba.