Falsehood against the Prophet (S) and Imams (a.s.)
It implies fabricating a tradition and then attributing it to the Holy Prophet (S) or the Imams (a.s.). In the same way it is HarÄm to knowingly propagate a weak tradition. However if one is sure of the proper references then he can quote the tradition and attribute it to the Ma’sÅ«mÄ«n (a.s.).