Sanhedrin 56A

בכל יום דנין את העדים בכינוי, ״יכה יוסי את יוסי״.

On every day of a blasphemer’s trial, when the judges judge the witnesses, i.e., interrogate the witnesses, they ask the witnesses to use an appellation for the name of God, so that they do not utter a curse of God’s name. Specifically, the witnesses would say: Let Yosei smite Yosei, as the name Yosei has 4 letters in Hebrew, as does the Tetragrammaton.

נגמר הדין, לא [היו] הורגין בכינוי, אלא מוציאין כל אדם לחוץ. שואלין את הגדול שביניהן ואומר לו: ״אמור מה ששמעת בפירוש״. והוא אומר, והדיינין עומדין על רגליהן וקורעין, ולא מאחין.

When the judgment is over, and the court votes to deem the defendant guilty, they do not sentence him to death based on the testimony of the witnesses in which they used an appellation for the name of God, without having ever heard the exact wording of the curse. Rather, they remove all the people who are not required to be there from the court, so that the curse is not heard publicly, and the judges interrogate the eldest of the witnesses, and say to him: Say what you heard explicitly. And he says exactly what he heard. And the judges stand on their feet and make a tear in their garments, as an act of mourning for the desecration of the honor of God. And they do not ever fully stitch it back together again.

והשני אומר: ״אף אני כמוהו״, והשלישי אומר: ״אף אני כמוהו״.

And the second witness says: I too heard as he did, but he does not repeat the curse explicitly. And the third witness, in the event that there is one, says: I too heard as he did. In this manner, the repetition of the invective sentence is limited to what is absolutely necessary.