וַיֵּרָ֤א אֵלָיו֙ יְהוָ֔ה בְּאֵלֹנֵ֖י מַמְרֵ֑א וְה֛וּא יֹשֵׁ֥ב פֶּֽתַח־הָאֹ֖הֶל כְּחֹ֥ם הַיּֽוֹם׃
And the LORD appeared unto him by the terebinths of Mamre, as he sat in the tent door in the heat of the day;
Find Mishnaic references to Genesis 18:1: , passages from the 63 tractates of the Mishnah.