And the Exalted said with that meaning: {Indeed, if they come to know of you, they will stone you or return you to their religion, and then you will never succeed} (Al-Kahf 20).

For this reason, it became mandatory to establish the outward law among the Opposites for covering and dissimulation (Taqiyya), and not for religious practice or belief.

And I shall recite to you, O inquirer, from those examples brought by the messengers for teaching and discipline—a mention that pleases the seeker, benefits the desirer, guides the lost, increases the light of the insightful, establishes the truth, and vanishes falsehood. {Indeed, falsehood is ever bound to vanish} (Al-Isra 81).

It is that our master Moses—peace be upon him—commanded the glorification of the Saturday (Sabbath) over all the days, and he commanded its preservation and the killing of everyone who performs work on it forever, and that is in the thirty-first chapter of the Book of Exodus: "And the Lord spoke to Moses, saying:

'And you, speak to the children of Israel, saying: "My Sabbaths you shall keep, for it is a sign between Me and you throughout your generations, that you may know that I am the Lord who sanctifies you. You shall keep the Sabbath, for it is holy to you.