Bechoros7: 6
הַמַּקִּישׁ בְּקַרְסֻלָּיו, וּבְאַרְכּוּבוֹתָיו, וּבַעַל פִּקָּה, וְהָעִקֵּל. אֵיזֶהוּ עִקֵּל? כָּל שֶׁמַּקִּיף פַּרְסוֹתָיו, וְאֵין אַרְכּוּבוֹתָיו נוֹשְׁקוֹת זוֹ לָזוֹ. פִּיקָה יוֹצְאָה מִגּוּדָלוֹ, עֲקֵבוֹ יוֹצֵא לַאֲחוֹרָיו, פַּרְסָתוֹ רְחָבָה כְּשֶׁל אַוָּז, אֶצְבְּעוֹתָיו מֻרְכָּבוֹת זוֹ עַל זוֹ, אוֹ קְלוּטוֹת: עַד הַפֶּרֶק — כָּשֵׁר; לְמַטָּה מִן הַפֶּרֶק וַחֲתָכָהּ — כָּשֵׁר. הָיְתָה בוֹ יְתֶרֶת, וַחֲתָכָהּ: אִם יֶשׁ בָּהּ עֶצֶם — פָּסוּל; וְאִם לָאו — כָּשֵׁר. יָתֵר בְּיָדָיו וּבְרַגְלָיו, שֵׁשׁ וָשֵׁשׁ עֶשְׂרִים וְאַרְבַּע — רַבִּי יְהוּדָה מַכְשִׁיר, וַחֲכָמִים פּוֹסְלִים. הַשּׁוֹלֵט בִּשְׁתֵּי יָדָיו — רַבִּי פּוֹסֵל, וַחֲכָמִים מַכְשִׁירִים. הַכּוּשִׁי, וְהַגִּיחוֹר, וְהַלַּבְקָן, וְהַקִּפֵּחַ, וְהַנַּנָּס, וְהַחֵרֵשׁ, וְהַשּׁוֹטֶה, וְהַשִּׁכּוֹר, וּבַעֲלֵי נְגָעִים טְהוֹרִין — פְּסוּלִין בָּאָדָם, וּכְשֵׁרִין בַּבְּהֵמָה. רַבָּן שִׁמְעוֹן בֶּן גַּמְלִיאֵל אוֹמֵר: שׁוֹטָה בַבְּהֵמָה אֵינָהּ מִן הַמֻּבְחָר. רַבִּי אֱלִיעֶזֶר אוֹמֵר: אַף בַּעֲלֵי דִלְדּוּלִין פְּסוּלִין בָּאָדָם וּכְשֵׁרִין בַּבְּהֵמָה.
One who is bowlegged, or knock-kneed, or one who has a pikkah, or who is an ikkel. Who is an ikkel? Anyone who draws his feet together, and his knees do not touch each other. [One who has] a lump growing out of his thumb, [or] his heel protrudes backward, [or] his sole is wide like that of a goose, [or] his fingers lie one upon the other, or they are grown together [is unfit] —- [if it is only] until the joint, he is fit; [if it was] below the joint and he separated it, he is fit. [If] he had an additional [digit], and he amputated it: If it has a bone, he is unfit; if not, he is fit. [If he had] an additional digit on his hands and feet, six each, totaling twenty-four —- R’ Yehudah declares him fit, and the Sages declare him unfit. One [who] is ambidextrous —- Rabbi declares him unfit, and the Sages declare him fit. [If] he is black-skinned, or red-skinned, or an albino, or lanky, or a dwarf, or a deaf person, or a mental incompetent, or a drunk, or those afflicted with negaim that are adjudged tahor —- these are unfit in men, but fit in animals. Rabban Shimon ben Gamliel says: An animal that is mentally deficient is not [an offering] of choice. R’ Eliezer says: Also those with dangling flesh are unfit in man but fit in animals.