Related for Moed Katan 51:3

מאי משמע כדמתרגם רב יוסף רבי רבי דטב להון לישראל בצלותיה מרתיכין ופרשין

my father, the chariots of Israel and the horsemen thereof.<span class="x" onmousemove="('comment',' II Kings II, 12.');">³</span> 'My father, my father', that is, [to rend on the loss of] one's father or mother.' The char of Israel and the horsemen thereof', that is [for] a Master who taught one Torah.

Jerusalem Talmud Moed Katan