Musnad Ahmad 30:3627

'Abd al-Samad narrated to us, Hisham and 'Abd al-Wahhab narrated to us, Hisham informed us, from Yahya, from Abu Muzahim, from Abu Hurayrah. 'Abd al-Wahhab said, from Abu Muzahim, he heard Abu Hurayrah say: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Whoever follows a funeral procession and prays over it, for him is a qirat. And whoever waits until its burial is completed, for him are two qirats." They said: "O Messenger of Allah, and what are the two qirats?" He said: "One of them is like Uhud."