Exodus 8:26-28 Amplified Bible, Classic Edition (AMPC)
26 And Moses said, It is not suitable or right to do that; for the animals the Egyptians hold sacred and will not permit to be slain are those which we are accustomed to sacrifice to the Lord our God; if we did this before the eyes of the Egyptians, would they not stone us?
27 We will go a three days’ journey into the wilderness and sacrifice to the Lord our God, as He will command us.
28 So Pharaoh said, I will let you go, that you may sacrifice to the Lord your God in the wilderness; only you shall not go very far away. Entreat [your God] for me.
Exodus 8:26-28 New International Version (NIV)
26 But Moses said, “That would not be right. The sacrifices we offer the Lord our God would be detestable to the Egyptians. And if we offer sacrifices that are detestable in their eyes, will they not stone us? 27 We must take a three-day journey into the wilderness to offer sacrifices to the Lord our God, as he commands us.”
28 Pharaoh said, “I will let you go to offer sacrifices to the Lord your God in the wilderness, but you must not go very far. Now pray for me.”