Reference for Moed Katan 56:26

מר זוטרא אמר מהכא (עמוס ו, ז) וסר מרזח סרוחים מרזח נעשה שר לסרוחים

Said R'Johanan:<span class="x" onmousemove="('comment',' D.S., Han., Asheri and others have: Said Rab Judah, as citing Rab.');">⁴²</span> Comforters are not permitted to say a word until the mourner opens [conversation], as it is said: So they sat down with him on the ground. and none spake a word unto him; for they saw that his grief was very great.<span class="x" onmousemove="('comment',' Job. II, 13.');">⁴³</span>

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