Musnad Ahmad 30:595

'Abd al-Razzaq narrated to us, Ma'mar narrated to us, from a man from Banu Ghifar, from Sa'id al-Maqburi, from Abu Hurayrah, from the Prophet (peace and blessings of Allah be upon him), who said: "Allah has left no excuse for a servant whom He has kept alive until he reached sixty or seventy years of age. Allah has left no excuse for him. Allah has left no excuse for him."