Hazrat Amr bin Shu'aib narrates from his father and grandfather that they asked the Holy Prophet (peace and blessings be upon him): O Messenger of Allah (peace and blessings be upon him)! As bin Wa'il had ordered in the time of ignorance that a hundred camels be slaughtered, and Hisham bin Al-As had slaughtered fifty camels as his share. Should I slaughter on his behalf? The Prophet (peace and blessings be upon him) said: If your father had affirmed the oneness of Allah, then he will receive reward from your fasting, giving charity, and freeing slaves on his behalf.