Responsa hatam Sofer: Orah hayim 51
Moses Sofer
1835
And likewise I say: Whoever mingles teachings of Kabbalah with rulings of halakhah is liable for kilayim—sowing a forbidden mixture of seeds, “Lest the fullness of the seed you have sown be forfeited” (Deuteronomy 22:9). Meanwhile one who mingles philosophy books with Torah transgresses the prohibition against plowing with an ox and a donkey together, and if he is a leader of Israel he leads with a forbidden combination of animals.
Translated by .
Maoz
Kahana
Credits
Moses Sofer, Sefer Ḥatam Sofer: ḥeleḳ oraḥ ḥaim (Pressburg: Franz Edlen von Schmidschen, 1855), 19a (responsum 51), https://www.nli.org.il/en/books/NNL_ALEPH002036631/NLI.
Published in: The Posen Library of Jewish Culture and Civilization, vol. 6.