וְעַתָּ֗ה הֲלֹ֥א בֹ֙עַז֙ מֹֽדַעְתָּ֔נוּ אֲשֶׁ֥ר הָיִ֖ית אֶת־נַעֲרוֹתָ֑יו הִנֵּה־ה֗וּא זֹרֶ֛ה אֶת־גֹּ֥רֶן הַשְּׂעֹרִ֖ים הַלָּֽיְלָה׃
Ora pois, não é Boaz, com cujas moças estiveste, de nossa parentela. Eis que esta noite ele vai joeirar a cevada na eira.
Rashi
Tonight. Because the generation was unrestrained in theft and robbery; he would sleep in his granary to guard his granary.