דְּאָמַר רַב אַחָא: הַנִּכְנָס לְהַקִּיז דָּם, אוֹמֵר: ״יְהִי רָצוֹן מִלְּפָנֶיךָ ה׳ אֱלֹהַי שֶׁיְּהֵא עֵסֶק זֶה לִי לִרְפוּאָה, וּתְרַפְּאֵנִי. כִּי אֵל רוֹפֵא נֶאֱמָן אָתָּה וּרְפוּאָתְךָ אֱמֶת, לְפִי שֶׁאֵין דַּרְכָּן שֶׁל בְּנֵי אָדָם לְרַפּאוֹת אֶלָּא שֶׁנָּהֲגוּ״.
As Rav Aḥa said: One who enters to let blood says:
May it be Your will, O Lord my God,
that this enterprise be for healing and that You should heal me.
As You are a faithful God of healing and Your healing is truth.
Because it is not the way of people to heal, but they have become accustomed.
Rav Aḥa is saying that people should not practice medicine as they lack the ability to heal; rather, healing should be left to God.
May it be Your will, O Lord my God,
that this enterprise be for healing and that You should heal me.
As You are a faithful God of healing and Your healing is truth.
Because it is not the way of people to heal, but they have become accustomed.
Rav Aḥa is saying that people should not practice medicine as they lack the ability to heal; rather, healing should be left to God.
(כא) הַנִּכְנָס לְהַקִּיז דָּם אוֹמֵר יְהִי רָצוֹן מִלְּפָנֶיךָ יְיָ׳ אֱלֹהַי שֶׁיְּהֵא עֵסֶק זֶה לִי לִרְפוּאָה כִּי רוֹפֵא חִנָּם אָתָּה. וּכְשֶׁיֵּצֵא אוֹמֵר בָּרוּךְ אַתָּה יְיָ׳ רוֹפֵא חוֹלִים:
(21) A person who goes to let blood should say, "May it be Your will, God, our Lord, that this activity bring me a recovery, for You are a generous healer." Afterward, he should recite the blessing, "Blessed are You, God... Healer of the sick."
הנכנס להקיז דם אומר יהר"מ ה' אלהי שיהא עסק זה לי לרפואה כי רופא חנם אתה ולאחר שהקיז יאמר ברוך רופא חולים:
One who goes to let blood should say: May it be Your will, my God, that this be an action of healing, for You heal freely. After the bloodletting, say: Blessed... is the healer of the sick.
לעולם יהא אדם רגיל לומר כל מה דעביד רחמנא לטב עביד:
One should be accustomed to say: All that God does is for the best!