וּבְנֵ֣י צִיּ֗וֹן גִּ֤ילוּ וְשִׂמְחוּ֙ בַּיהוָ֣ה אֱלֹֽהֵיכֶ֔ם כִּֽי־נָתַ֥ן לָכֶ֛ם אֶת־הַמּוֹרֶ֖ה לִצְדָקָ֑ה וַיּ֣וֹרֶד לָכֶ֗ם גֶּ֛שֶׁם מוֹרֶ֥ה וּמַלְק֖וֹשׁ בָּרִאשֽׁוֹן׃
Dan kamu, hai anak-anak Sion, bergembiralah dan bersukacitalah dalam Yang Mahakekal, Allahmu, sebab Ia telah memberikan kepadamu pengajar yang menuntun kepada kebenaran, dan Ia telah menurunkan hujan bagimu, hujan awal dan hujan akhir, pada bulan pertama.
Mishnah Ta'anit
They don’t pray for rain except close to the rainy season. Rabbi Judah says: One who goes down before the ark on the last day of Sukkot the last one mentions [rain], the first does not; on the first day of Pesah, the first mentions, the last does not. Up until when do they request rain? Rabbi Judah says: Until Pesah is over. Rabbi Meir says: Until Nissan is over, as it says, “Now He makes the rain fall in the first month, early rain and late rain” (Joel 2:23).