Musnad Ahmad 30:2938

'Abd al-Rahman narrated to us, Hammad narrated to us, from Muhammad ibn Ziyad, who said: I heard Abu Hurayrah say: I heard Abu al-Qasim (may Allah bless him and grant him peace) say: "Indeed, there is an hour in Friday; no Muslim man coincides with it while asking Allah for good, except that He gives it to him."