Responsa for Bava Metzia 64:1
מדברי שניהם נלמד צער בעלי חיים דאורייתא ואפי' ר"ש לא קאמר אלא משום דלא מסיימי קראי אבל מסיימי קראי דרשי' ק"ו משום מאי לאו משום צער בעלי חיים דרשינן
From the arguments of both we may infer that [relieving] the suffering of an animal is a Biblical law. For even R. Simeon said [this]<span class="x" onmousemove="('comment',' That unloading needs be explicitly commanded, besides loading. ');"><sup>1</sup></span>
Teshuvot Maharam
Q. Is a Jew permitted to milk a cow on the Sabbath?
A. No, but because of the danger to the cow in not being milked, one is permitted to tell a Gentile to milk it and keep the milk for himself.
SOURCES: Cr. 182; Pr. 49, 638; Hag. Mord. Shabb. 466; cf. Shaare Teshubah (Geonic Responsa), 221; Asheri Shabb. 18, 3; ibid. B.M. 2, 29.
A. No, but because of the danger to the cow in not being milked, one is permitted to tell a Gentile to milk it and keep the milk for himself.
SOURCES: Cr. 182; Pr. 49, 638; Hag. Mord. Shabb. 466; cf. Shaare Teshubah (Geonic Responsa), 221; Asheri Shabb. 18, 3; ibid. B.M. 2, 29.
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