Abu Ma'shar said: Sayyiduna Sa'd bin Khawli (may Allah be pleased with him) was the freed slave of Sayyiduna Hatib bin Abi Balta'ah (may Allah be pleased with him), and he was from the tribe of Madhhij.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 5485