פירוש על כלאים 7:3

Text of the Mishnah. In the Yerushalmi mss.: לבעלין.

In Babli Baba Qama 9a, Rav Huna prescribes that for meritorious deeds one never should pay more than one third over the going rate. (Maimonides follows the opinion of Rav Huna who has precedence over Rav Sheshet in matters of ritual).