Exodus 8:26-28

Young's Literal Translation

²⁶ and Moses saith, `Not right to do so, for the abomination of the Egyptians we do sacrifice to Jehovah our God; lo, we sacrifice the abomination of the Egyptians before their eyes -- and they do not stone us!

²⁷ A journey of three days we go into the wilderness, and have sacrificed to Jehovah our God, as He saith unto us.'

²⁸ And Pharaoh saith, `I send you away, and ye have sacrificed to Jehovah your God in the wilderness, only go not very far off; make ye supplication for me;'