Reference for Berakhot 108:19

רב יהודה חלש ואתפח על לגביה רב חנא בגדתאה ורבנן אמרי ליה בריך רחמנא דיהבך ניהלן ולא יהבך לעפרא אמר להו פטרתון יתי מלאודויי

Rab Judah was ill and recovered. Rab Hanna of Bagdat and other Rabbis went in to visit him. They said to him, "Blessed be the All-merciful Who has given thee back to us and has not given thee to the dust." He said to them, "You have exempted me from the obligation of thanksgiving."

Jastrow