וִיהִ֣י בְשָׁכְב֗וֹ וְיָדַ֙עַתְּ֙ אֶת־הַמָּקוֹם֙ אֲשֶׁ֣ר יִשְׁכַּב־שָׁ֔ם וּבָ֛את וְגִלִּ֥ית מַרְגְּלֹתָ֖יו ושכבתי [וְשָׁכָ֑בְתְּ] וְהוּא֙ יַגִּ֣יד לָ֔ךְ אֵ֖ת אֲשֶׁ֥ר תַּעַשִֽׂין׃
Nanti, apabila ia berbaring, perhatikanlah tempat ia tidur. Lalu datanglah ke sana, singkapkanlah bagian kakinya, dan berbaringlah di situ; ia akan memberitahukan kepadamu apa yang harus engkau lakukan.
Likutei Halakhot
And this is like (Isaiah 41:2)"Summoned him to His service" . Since through charity one can call the good that falls into the lowest level, in the aspect of feet, in the aspect of (Ruth 3:4) "and uncover his feet, and lay down". And likewise hinted in the words of Rabbeinu of blessed memory in another place (Ch. 17) that through charity one wakes up the good that was hidden and concealed in places far from Hashem Yisbarach.