BT Git 45a(7) :לאו עכברא גנב אלא חורא גנב ואי לאו עכברא חורא מנא ליה‏ : the mouse did not steal, but the hole stole. But were it not for the mouse, what could the hole do?
See the entire entry for ḥōr, ḥōrā n.m. hole