Reference for Kiddushin 66:7

איבעיא להו בנו והוא רבו מהו שיעמוד אביו מפניו ת"ש דאמר ר' יהושע בן לוי אני איני כדי לעמוד מפני בני אלא משום כבוד בית נשיא

rise before your father!<span class="x" onmousemove="('comment',' Though Rab Judah was his father's teacher, v. supra 32a.');">⁷</span> - R'Ezekiel was different, because he had [many] good deeds to his credit, for even Mar Samuel<span class="x" onmousemove="('comment',' Samuel himself who was Rab Judah's teacher.');">⁸</span>

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