Reference for Bava Kamma 160:9
(חב"ד בי"ח בח"ן סימן) אמר רבי אחא בר פפא משום רבי אבא בר פפא משום רבי אדא בר פפא ואמרי לה אמר ר' אבא בר פפא משום רבי חייא בר פפא משום רבי אחא בר פפא ואמרי לה אמר ר' אבא בר פפא משום רבי אחא בר פפא משום רבי חנינא בר פפא
even on the Sabbath day for the purpose of relieving the epidemic of itching; if the door to prosperity has been shut to an individual it will not speedily be opened; and when one buys a house in Eretz Yisrael, the deed may be written even on the Sabbath day. An objection was raised [from the following:] 'Regarding any other misfortune<span class="x" onmousemove="('comment',' I.e., other than those enumerated in Ta'an. III, 1-8. ');"><sup>14</sup></span> that might burst forth upon the community, as e.g. itching. locusts, flies, hornets, mosquitoes, a plague of serpents and scorpions, no alarm was raised by [public service, on the Sabbath] but a cry was raised [by privately reciting prayers]?<span class="x" onmousemove="('comment',' Ta'an. 14a. ');"><sup>15</sup></span>