Reference for Zevachim 223:4

סיפא אתאן לתנא קמא דרבי אלעזר ברבי שמעון דאמר כוס עושה דחוי לחבירו:

If it agrees with R'Nehemiah, consider the sequel: IF THE BLOOD WAS RECEIVED IN TWO GOBLETS: IF ONE SPRINKLED BOTH WITHIN, HE IS NOT LIABLE; BOTH WITHOUT, HE IS LIABLE.

Jastrow