Musnad Ahmad 8:83

'Abd al-Razzaq narrated to us, Ma'mar narrated to us, from al-Zuhri, from 'Umar ibn Sa'd, or someone else: That Sa'd ibn Malik said: I heard the Messenger of Allah, peace and blessings of Allah be upon him, saying: "Whoever insults Quraysh, Allah the Exalted and Majestic will insult him."