וַיֵּצֵ֤א הָֽאֶחָד֙ מֵֽאִתִּ֔י וָאֹמַ֕ר אַ֖ךְ טָרֹ֣ף טֹרָ֑ף וְלֹ֥א רְאִיתִ֖יו עַד־הֵֽנָּה׃
하나는 내게서 나간 고로 내가 말하기를 정녕 찢겨 죽었다하고 내가 지금까지 그를 보지 못하거늘
Mishnah Berakhot
One who is praying and makes a mistake, it is a bad sign for him. And if he is the messenger of the congregation (the prayer leader) it is a bad sign for those who have sent him, because one’s messenger is equivalent to one’s self. They said about Rabbi Hanina ben Dosa that he used to pray for the sick and say, “This one will die, this one will live.” They said to him: “How do you know?” He replied: “If my prayer comes out fluently, I know that he is accepted, but if not, then I know that he is rejected.”