Sahih Bukhari
Manumission of Slaves
Volume: 003 / Book Number: 046 / Hadith Number: 719
Narrated Abu Huraira:
I have loved the people of the tribe of Bani Tamim ever since I heard, three things, Allah's Apostle said about them. I heard him saying, These people (of the tribe of Bani Tamim) would stand firm against Ad-Dajjal." When the Sadaqat (gifts of charity) from that tribe came, Allah's Apostle said, "These are the Sadaqat (i.e. charitable gifts) of our folk." 'Aisha had a slave-girl from that tribe, and the Prophet said to 'Aisha, "Manumit her as she is a descendant of Ishmael (the Prophet)."