הלכה על במדבר 15:24

From the laws of the commandment is (for example,) that which they, may their memory be blessed, said (Horayot 4b) that there is a mistake in the instructions [for which] the court is liable to bring a sacrifice, and not (upon) the one who does according to their word, and there is [one] where the doer is liable and not them. And these are from the necessary conditions for which the court would be liable and not the ones doing according to their word: That the instructors be seventy-one; that the head of the yeshiva be with them at the time they instructed; that they all be fit for instruction, as it is stated (Numbers 25:24), "if from the eyes if the community" - [not] until they be eyes for them, meaning to say, until they are fit for instruction; and the majority of them err in this matter that they instructed about; that they instructed explicitly, such that they said to the people, "You are permitted to do [it]"; that all of the congregation - or most of them - do according to their word; that the ones doing it are inadvertent according to their word and imagine that the court instructed properly, and not that those doing knew that they erred and did [it] nonetheless. And also that they instructed to nullify part [of the law] and preserve part of it (Horayot 3b), but not to uproot all of one commandment, as it is stated, "and the thing was hidden," - and not the whole body [of the commandment]. And this is a (teaching) decree of Scripture (gezerat hakatuv). And it is possible that the reason of the matter it that there is no concern that a mistake of uprooting the whole body of the commandment will not be revealed quickly. And when the sin become known to them, that they knew the actual thing that they instructed in error, and not that they were in doubt about which thing the error occurred to them - and even if they knew that they certainly erred in one [part]. And even if the sinners informed them and told them, "You erred in this" - since they do not remember that thing exactly, they are exempt; as it is stated (Leviticus 4:14), "And the sin is known" - meaning to say, to them, and not that others inform them. All of these conditions need to be in the thing, such that the court is liable for a sacrifice and not the ones that act according to their word.