Reference for Gittin 66:13

ואי ס"ד כרבי כי מיטמרי מאי הוי אלא שמע מינה כרשב"ג סבירא ליה

This opinion is borne out by the conclusion of the passage quoted: 'If he told each of them separately [in the first instance], he can countermand to them separately.'<span class="x" onmousemove="('comment',' As countermanding the order to one does not affect the order to the other. ');">¹³</span>

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