The Mishnah
תענית ג׳Ta'anit 3
Perek 3 of 4 in Ta'anit — 9 mishnayot
Mishnah 1א׳
סֵדֶר תַּעֲנִיּוֹת אֵלוּ הָאָמוּר, בִּרְבִיעָה רִאשׁוֹנָה. אֲבָל צְמָחִים שֶׁשָּׁנוּ, מַתְרִיעִין עֲלֵיהֶם מִיָּד. וְכֵן שֶׁפָּסְקוּ גְשָׁמִים בֵּין גֶּשֶׁם לְגֶשֶׁם אַרְבָּעִים יוֹם, מַתְרִיעִין עֲלֵיהֶם מִיָּד, מִפְּנֵי שֶׁהִיא מַכַּת בַּצֹּרֶת:
This [previously mentioned] order of fasts applies with regard to the first rains [ie., when they do not descend]; but [if] the plants change [from their normal stage of growth] , we cry out upon them immediately. And so too, if there is an interval between rains of forty days, we cry out upon them immediately, since this is a plague of drought.
Mishnah 2ב׳
יָרְדוּ לַצְּמָחִין אֲבָל לֹא יָרְדוּ לָאִילָן, לָאִילָן וְלֹא לַצְּמָחִים, לָזֶה וְלָזֶה אֲבָל לֹא לַבּוֹרוֹת לַשִּׁיחִין וְלַמְּעָרוֹת, מַתְרִיעִין עֲלֵיהֶן מִיָּד:
If rain sufficient for the growth of sprouts and herbage has fallen, but not for the growth of trees; or sufficient for the growth of trees, but inadequate to the growth of herbage; or sufficient for both, but not to fill the wells, cisterns, and caves, an alarm is immediately to be sounded.
Mishnah, Torat Emet 357 edition, via Sefaria — public domain
English: Sefaria Community Translation — CC0