Vayikra 10:7-9

Orthodox Jewish Bible

⁷ And ye shall not go out from the entrance of the Ohel Mo’ed, lest ye die; for the shemen mishchat (anointing oil) of Hashem is upon you. And they did according to the word of Moshe.

⁸ And Hashem spoke unto Aharon, saying,

⁹ Do not drink yayin nor strong drink, thou, nor thy banim with thee, when ye go into the Ohel Mo’ed, lest ye die; it shall be chukkat olam throughout your generations;