Musnad Ahmad 30:1729

Sulayman narrated to us, Isma'il narrated to us, al-'Ala' informed me, from his father, from Abu Hurayrah, that the Prophet (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, all the people will believe, all of them together. On that day, {no soul will benefit from its faith if it had not believed before or earned good through its faith} [Al-An'am: 158]."