How much rain must fall for one to be obligated to recite the blessing [over rainfall]? Rabbi Yosei in the name of Rabbi Yehuda and Rabbi Yona in the name of Rabbi Shmuel said: For the first rain of the season, enough to permeate [the earth], and at the end of the season,41When small amounts of rain had fallen previously. any amount. Rabbi Ḥiyya said in the name of Rabbi Yoḥanan: For the first rain of the season, enough to permeate [the earth], and at the end of the season, not until the surface of the roof tiles are rinsed off.
Rabbi Yanai ben Rabbi Yishmael said in the name of Rabbi Shimon ben Lakish: For the first rain of the season, enough to permeate [the earth], and at the end of the season, enough that the sealant on top of the wine jug becomes soaked. But surely even a great deal of rain could fall and the sealant would not become soaked?42Because it is waterproof. It is, rather, until it appears that it is soaked.43Enough water collects on it to give it the appearance of being soaked.
What blessing should one recite [over the rain]? It is as we learned: For rain and other good tidings, one recites: ‘Blessed [is God]…Who is good and beneficent.’ Rabbi Berekhya in the name of Rabbi Levi derives this from here: “Cold water on a weary soul, so is good news from a distant land” (Proverbs 25:25) – just as for good news one recites: ‘[Blessed is God…] Who is good and beneficent,’44Brachot 54a. for cold water [i.e., rain], too, one recites: ‘[Blessed is God…] Who is good and beneficent.’
Rabbi Yehuda said: This is the blessing that my father Yeḥezkel would recite [over rain]: May Your name be blessed, exalted, and magnified for each and every drop that you cause to fall for us, which you keep separate from one another.45Translation follows the unanimously recommended textual emendation שאתה ממניען אלו מאלו. Rabbi Yehuda ben Rabbi Shimon said: He rains them [the raindrops] down by measure, as it is stated: “For He deducts [yegara] drops of water” (Job 36:27), just as it says: “It shall be deducted [venigra] from the valuation” (Leviticus 27:18).46All deduction is by measure.
Rabbi Yosei bar Yaakov once went up to visit Rabbi Yehuda of Migdal. He heard his voice reciting this blessing: ‘Thousands upon thousands and myriads upon myriads of blessings and thanks we would require to thank Your name for each and every drop that You cause to rain down for us, for You bestow good rewards [even] to sinners.’ He said to him: ‘That is the blessing that Rabbi Simon would recite.’
Rabbi Zeira said: ‘There [in Babylonia] they say: When low prices prevail in the world, when bounty comes to the world, and when a river inundates the countryside, one recites: Blessed [is God]…Who is good and beneficent.’