Liturgy к Берешит 18:1

וַיֵּרָ֤א אֵלָיו֙ יְהוָ֔ה בְּאֵלֹנֵ֖י מַמְרֵ֑א וְה֛וּא יֹשֵׁ֥ב פֶּֽתַח־הָאֹ֖הֶל כְּחֹ֥ם הַיּֽוֹם׃

И явился ему Господь у Мамреца, когда он сидел у входа скинии в жару дня;

Pesach Haggadah

Upon his doors did You knock at the heat of the day on Pesach [Genesis 18:1]; he sustained shining ones [angels] with cakes of matsa on Pesach; and to the cattle he ran, in commemoration of the bull that was set up for Pesach. "And you shall say, 'it is the Pesach sacrifice.'"