Musnad Ahmad 30:3728

Ali narrated to us, Warqa’ informed us, from Abu al-Zinad, from al-A’raj, from Abu Hurairah, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "The Hour will not be established until the sun rises from its place of setting. So when it rises and the people see it, they will all believe. That is the time when {no soul will benefit from its faith} [Al-An'am: 158] to the end of the verse."