What did the Prophet Muhammad (saw) forbid and what did he allow with regards to visiting graves, eating sacrifices, and drinking Nabidh?
 Ibn Buraida reported on the authority of his father that the Messenger of Allah (may peace be upon him) said:                      I forbade you to visit graves, but you may now visit them; I forbade you to eat the flesh of sacrificial animals after three days, but you way now keep it as along as you feel inclined; and I forbade you nabidh except in a water-skin, you may drink it from all kinds of water-skins, but you must not drink anything intoxicating.