Reference for Ketubot 71:7

איילונית אין לה לא קנס ולא פיתוי ורמינהי החרשת והשוטה והאיילונית יש להן קנס ויש להן טענת בתולים והא מאי רומיא הא ר"מ הא רבנן ודקארי לה מאי קארי לה

[It was said above:] “An aylonit has no claim to a fine [for rape] or [payment] for seduction. They raised a contradiction: A woman who is a deaf-mute, or lacking sound senses, or an aylonit, has a claim to a fine [for rape], and a suit can be brought [by her husband] against her concerning her virginity. What contradiction is there? The one is according to R. Meir and the other is according to the Rabbis! But why did he even raise this as a difficulty?

Jastrow