Abu Hurayrah (may Allah be pleased with him) said: I have loved Banu Tamim greatly ever since I heard three things (about them) from the Messenger of Allah (peace and blessings be upon him): (1) He (peace and blessings be upon him) said: "Of my Ummah, they are the sternest against the Dajjal." (2) Aishah (may Allah be pleased with her) had a slave-girl from them, and he (peace and blessings be upon him) said to Aishah (may Allah be pleased with her): "Set her free, for she is from the descendants of Isma'il." (3) Their sadaqat arrived, and he (peace and blessings be upon him) said: "These are the sadaqat of our people."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب قسم الصدقات / 13146