Deuteronomy 17:4

and when this will have been reported to you, and, upon hearing it, if you have inquired diligently and have found it to be true, that the abomination is being done in Israel

Other versions

King James Version

And it be told thee, and thou hast heard of it, and enquired diligently, and, behold, it be true, and the thing certain, that such abomination is wrought in Israel:

English Standard Version

and it is told you and you hear of it, then you shall inquire diligently, and if it is true and certain that such an abomination has been done in Israel,

New International Version

and this has been brought to your attention, then you must investigate it thoroughly. If it is true and it has been proved that this detestable thing has been done in Israel,