When Rav Dimi came from the Land of Israel, he said in the name of Rabbi Johanan that there were three red threads: one in connection with the red cow in the second in connection with the "scapegoat for Azazel" in the Yom Kippur service of (which Mishnah Yoma 4:2 indicates was marked with a red thread), and the third in connection with the person with skin disease (, "metzora") in Rav Dimi reported that one weighed ten "zuz", another weighed two "selas", and the third weighed a shekel, but he could not say which was which. When Rabin came, he said in the name of Rabbi Jonathan that the thread in connection with the red cow weighed ten "zuz", that of the goat for Azazel weighed two "selas", and that of the person with skin disease weighed a shekel. Rabbi Johanan said that Rabbi Simeon ben Halafta and the Sages disagreed about the thread of the red cow, one saying that it weighed ten shekels, the other that it weighed one shekel. Rabbi Jeremiah of Difti said to Rabina that they disagreed not about the thread of the red cow, but about that of the goat for Azazel.