Sayyiduna al-Jafshish al-Kindi (may Allah be pleased with him) said: I said to the Prophet (peace and blessings be upon him): "O Messenger of Allah, which tribe are you from?" He said: "We are Banu al-Nadr bin Kinanah; we do not slander our mother, nor do we disown our father."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 2178