פּירוש אויף בראשית 36:24

ואיה וענה literally, AND AJAH AND ANAH — The ו in ואיה is redundant, so that the words are equivalent to איה וענה Ajah and Anah. There are many examples of this in Biblical Hebrew: (Daniel 8:13) “to give (וקדש וצבא) both the Sanctuary and the host to be trampled underfoot”; (Psalms 86:7) “they are cast into a deep sleep (ורכב וסוס) the riders also and the horses”.

אשר מצא את הימים, “who discovered the yemim. According to Rashi, these were animals that resulted from crossbreeding, and the Torah names him in order to chastise him for having successfully violated the principle of not crossbreeding. If you were to question that Anah could not have been the first person having done this as Rashi himself commenting on Genesis 26,13 on the words: ויגדל מאד, writes that people at that time already used to say that “the dung of the mules of Yitzchok are worth more than the gold of their king,” which proves that mules, which are the result of crossbreeding horses and donkeys already existed and people were familiar with them, we have to understand this verse as follows: Anah was the first person who deliberately mated donkeys with horses. Prior to this, mules existed but they resulted from the mother animal having mated with a horse of its own account. The word: מצא means that he developed a system of breeding such animals successfully. He noted that in order to tell which animal was the result of a male donkey mating with a female horse, and which was the product of a sheass having mated with a male horse, if the animal has thin ears it is the product of a female horse and a male donkey; when the ears are thick, it is proof that the mother animal was a sheass and it had mated with a male horse. Seeing that G-d is very displeased with such procedures being undertaken by man, he is blamed for such practices having been introduced. Another interpretation: the Torah wishes the reader to know that the animals resulting from crossbreeding are not included in the blessing given by the Creator to all the creatures He had created. Proof of this is the fact that such creatures cannot sire or give birth to another generation of their breed.

AND THESE ARE THE CHILDREN OF ZIBEON: AND AJAH, AND ANAH. The letter vav in the word v’ayah — (and Ajah) is redundant. Similarly: Thy father’s servant ‘va’ani’ (and I) have been in time past, so ‘va’ani’ (and I) will now be thy servant.²⁹⁰II Samuel 15:34. In both cases the vav is redundant, and the meaning of the word is ani (I). And there were the heads of their fathers’ houses: ‘va’epher’ (and Epher), and Ishi²⁹¹I Chronicles 5:24. — here too the vav is redundant. And there are many others like them.
Now this Zibeon was the third son of Se’ir the Horite,²⁹²Verse 20 here. and he begot these two children, Ajah and Anah, and Scripture relates that this Anah, Zibeon’s son, was that same Anah who found the mules in the desert as he fed the asses of Zibeon his father, to differentiate between him and his uncle Anah,²⁹²Verse 20 here. the brother of his father, Zibeon. This Anah, Zibeon’s son, was Esau’s father-in-law.²⁹³Verse 2: Oholibamah the daughter of Anah.

הוא ענה THIS WAS THAT ANAH mentioned above (Genesis 36:20) as the brother of Zibeon. Here is called his son, thus telling us that Zibeon and his own mother were the parents of Anah (Pesachim 54a).