פירוש על קידושין 7:4

Ravina reads meaning into the letter “yod” found in the word “eyn.” The appearance of the letter “yod” allows two halakhot to be learned from this verse. This is of course an unusual derashah to say the least. Tannaim do not derive meaning from verses in this way. Even among late amoraim, which Ravina is, this is a strange derashah, which the Talmud will immediately notice.