Reference for Nedarim 179:7

ואי אמרת נשאל אע"פ שלא חל נדר אי בעי על נדרו איתשיל ברישא אי בעי על נזרו איתשיל ברישא ר' נתן היא

Shall we say that the following supports him? [If he vows,] 'Konam that I benefit not from So-and-so, and from anyone from whom I may obtain absolution for him,' he must obtain absolution in respect of the first, and then obtain absolution in respect of the second.<span class="x" onmousemove="('comment',' I.e., the Sages who became subject to the vow on account of having granted absolution. ');">⁷</span>

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