אִינִי, וְהָא אַבָּיֵי שְׁרָא לֵיהּ לְרַב דִּימִי בַּר לֵיוַאי לְכַבְרוֹיֵי סַלֵּי! הַהוּא טָעוּתָא הֲוַאי.
The Gemara asks: Is that so, that he was required to refrain from labor? Didn’t Abaye permit Rav Dimi bar Liva’ei to fumigate baskets with sulfur even though he had already recited the Shabbat prayer, indicating that it is permitted to perform labor even after the Shabbat prayer? The Gemara responds: That was an error, as Rav Dimi did not intend to begin Shabbat early. It was a cloudy day and he mistakenly thought that the sun had set and that was why he prayed. Consequently, even though he prayed, the Shabbat prayer did not obligate him to conduct himself in accordance with the sanctity of Shabbat and he was allowed to perform labor even after his prayer.