R. Meir told a Samaritan that he was a descendant of Isachar (whose name was Shomron) and not of Joseph as he had thought. The Epitropos of the Samaritans said to him, “He removed you from Joseph and did not bring you to Issachar.”
The Samaritan Who Claimed Descent from Joseph
Gaster, Exempla of the Rabbis, No. 180