בַּחֹ֙דֶשׁ֙ הַשְּׁלִשִׁ֔י הֵחֵ֥לּוּ הָעֲרֵמ֖וֹת לְיִסּ֑וֹד וּבַחֹ֥דֶשׁ הַשְּׁבִיעִ֖י כִּלּֽוּ׃ (ס)
In the third month they began to lay the foundation of the heaps, and finished them in the seventh month.
Read midrashic interpretation of II Chronicles 31:7: and classical rabbinic exegesis.