It is narrated from Sayyiduna Jubayr bin Mut'im (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "A man of Quraysh has the strength of two men who are not of Quraysh." A questioner asked Ibn Shihab what was meant by that. He said: "Excellence of judgement."
Hadith Referenceالمعجم الكبير للطبراني / باب الجيم / 1477