Musnad Ahmad 30:1637

'Abd al-Samad ibn 'Abd al-Warith narrated to us, Hammad ibn Salamah narrated to us, from 'Asim, from Abu Salih, from Abu Hurayrah, that the Prophet, peace and blessings of Allah be upon him, said: "The qintar is twelve thousand uqiyah; every uqiyah is better than what is between the heaven and the earth."