כי את אשר יאהב ה' יוכיח רבי חמא חזא חד סגי נהורא יתיב לעי באורייתא
And Yosef made haste; for his bowels did yearn toward his brother, and he sought where to weep; and he entered into his chamber, and wept there.
Bereishis Rabbah 92:1.
Sefaria · Bereishis Rabbah 92:1
נִכְמְרוּ רַחֲמָיו אֶל אָחִיו. הָרַחֲמִים נִתְעוֹרְרוּ, וְיוֹסֵף הִסְתִּיר אֶת הַבֶּכִי.
English: Bereishis Rabbah 92:1 develops Yaakov’s prayer through teachings on suffering and love, before turning to the “El Shaddai” prayer.
On the daf / in context: The midrash notes the intensity of Yosef’s emotion upon seeing Binyamin and the deliberate choice to weep in private rather than reveal himself yet.
Type of Learning: Derash on the verse (classic midrash) — not a formal named middah of the 13.
What Is Learned: Even in the midst of the carefully staged test, Yosef’s compassion for Binyamin is overwhelming; he must leave the room to weep, preserving the concealment until the right moment.