"Then shall he that struck him be clear" (Exodus 21:19), namely from death. I might hear that he is also clear from [paying for] loss of time and from healing; therefore Scripture says "only he shall pay for his loss of time and shall surely heal him" (Exodus 21:19), [meaning] apart from what is given to him as the value of his limbs, they give him the value of his loss of time. "Only he shall pay for his loss of time": I might hear forever; therefore Scripture says "and shall surely heal him": just as healing is on account of the blow, so too loss of time is on account of the blow. Or, just as healing is not divided into categories, so too loss of time should not be divided into categories, that just as he is bound to heal this one, so he gives loss-of-time payment to that one; therefore Scripture says "only he shall pay for his loss of time," which tells that loss of time is divided into a category [of its own]. "And shall surely heal him": if he was healed and then needed healing again, even four or five times, he is obligated to heal him; therefore Scripture says "and shall surely heal him" [the doubled verb]. If growths arose around the wound: if on account of the blow, he is liable; if not on account of the blow, he is exempt. And when the Torah said "he shall pay for his loss of time and shall surely heal him," [it means] just as loss of time is on account of the blow, so too healing is on account of the blow.
He Shall Pay for Loss of Time and Surely Heal Him
Yalkut Shimoni on Torah 331:7
וְנִקָּה הַמַּכֶּה, מִן הַמִּיתָה. שׁוֹמֵעַ אֲנִי מִן הַשֶּׁבֶת וּמִן הָרִפּוּי, תַּלְמוּד לוֹמַר רַק שִׁבְתּוֹ יִתֵּן וְרַפֹּא יְרַפֵּא, חוּץ מִמַּה שֶׁנּוֹתְנִין לוֹ דְמֵי אֵבָרָיו, נוֹתְנִין לוֹ דְמֵי שִׁבְתּוֹ. רַק שִׁבְתּוֹ יִתֵּן, שׁוֹמֵעַ אֲנִי לְעוֹלָם, תַּלְמוּד לוֹמַר וְרַפֹּא יְרַפֵּא, מַה רִפּוּי מֵחֲמַת מַכָּה, אַף שֶׁבֶת מֵחֲמַת מַכָּה. אוֹ כְּשֵׁם שֶׁלֹּא חִלֵּק מִכְלַל רִפּוּי, כָּךְ לֹא נֶחְלַק מִכְּלַל הַשֶּׁבֶת, שֶׁכְּשֵׁם שֶׁהוּא זָקוּק לְרַפְּאוֹת אֶת זֶה, כָּךְ נוֹתְנִין שֶׁבֶת לָזֶה, תַּלְמוּד לוֹמַר רַק שִׁבְתּוֹ יִתֵּן, מַגִּיד שֶׁחָלוּק מִכְּלַל הַשֶּׁבֶת. וְרַפֹּא יְרַפֵּא, נִתְרַפֵּא וְחָזַר וְנִתְרַפֵּא, וַאֲפִלּוּ אַרְבָּעָה וַחֲמִשָּׁה פְּעָמִים, חַיָּב לְרַפְּאוֹתוֹ, תַּלְמוּד לוֹמַר וְרַפֹּא יְרַפֵּא. עָלוּ צְמָחִים סְבִיבוֹת הַמַּכָּה, אִם מֵחֲמַת הַמַּכָּה, חַיָּב, שֶׁלֹּא מֵחֲמַת הַמַּכָּה, פָּטוּר, וּכְשֶׁאָמְרָה תּוֹרָה שִׁבְתּוֹ יִתֵּן וְרַפֹּא יְרַפֵּא, מַה שֶּׁבֶת מֵחֲמַת הַמַּכָּה, אַף רִפּוּי מֵחֲמַת הַמַּכָּה.