LEV748 It is a negative commandment to do no conjuring or soothsaying as Scripture says, nor shall you conjure [this verse]. This refers, for example, to those who give seasons and times, saying "That certain period or this certain month is good (auspicious) to do this," or the opposite [that it is not good]. Whoever does any action by the word of astrologers like these, violates this rule. So too if someone create illusions and makes it appear before the onlookers that he is performing an amazing deed when in truth he is doing nothing, he likewise violates this rule, since it is included under the term me'onen, conjurer.