Yosef Karo, Shulchan Aruch — Choshen Mishpat 46
“ Thus, if a document was produced in court and witnesses come and say this is our handwriting but we never knew of such testimony and we have no recollection that this party borrowed from or sold to the other, the document would not be verified and the witnesses have a status of the deaf until they recall their testimony. Any judge who does not judge accordingly does not know between his right and left when it comes to monetary law. ”
