Reference for Sotah 25:13
מי לנו גדול מיוסף כו' ת"ר בא וראה כמה חביבות מצות על משה רבינו שכל ישראל כולן נתעסקו בביזה והוא נתעסק במצות שנאמר (משלי י, ח) חכם לב יקח מצות וגו'
— R. Abbahu said: Read not 'goodly words' [imre shefer] but imre sefer [words of a document]. Among those present was Hushim, a son of Dan, who was hard of hearing; so he asked them, 'What is happening?' They said to him, '[Esau] is preventing [the burial] until Naphtali returns from the land of Egypt'. He retorted: 'Is my grandfather to lie there in contempt until Naphtali returns from the land of Egypt!' He took a club and struck [Esau] on the head so that his eyes fell out and rolled to the feet of Jacob. Jacob opened his eyes and laughed; and that is what is written: The righteous shall rejoice when he seeth the vengeance; he shall wash his feet in the blood of the wicked.<span class="x" onmousemove="('comment',' Ps. LVIII, 11. ');"><sup>11</sup></span>