Reference for Moed Katan 39:3
מאי לאו אסיפא לא ארישא
he counts seven days [of mourning] after the festival. During the first four days [alter the festival] the public engage [in condoling] with him, but in the last three days t public do not [need to] condole with him as they have already done [this service] towards him during the [three days within the] festival; and the festival enters into the counting. Now, does not [this last sentence] refer to the latter part [of the statement]?<span class="x" onmousemove="('comment',' 'If one buried his dead during the festival, three days before towards conclusion . .' As the seven days have been dealt with already, the last sentence must refer to the thirty days, namely, that the festival days enter into the counting; i.e., not as Rabbah replied, negatively.');"><sup>5</sup></span>