Pesachim 102A

מאן תנא עקירות,

Who is the tanna that taught that even in cases of uprooting oneself from a meal that requires a blessing of significance afterward, one nevertheless is required to recite a new blessing before resuming his meal?

רבי יהודה, דתניא: חברים שהיו מסובין, ועקרו רגליהם לילך לבית הכנסת או לבית המדרש, כשהן יוצאין ⁠— אין טעונין ברכה למפרע, וכשהן חוזרין ⁠— אין טעונין ברכה לכתחלה. אמר רבי יהודה: במה דברים אמורים ⁠— בזמן שהניחו שם מקצת חברים, אבל לא הניחו שם מקצת חברים, כשהן יוצאין ⁠— טעונין ברכה למפרע, וכשהן חוזרין ⁠— טעונין ברכה לכתחלה.

It is R' Yehuda, as it was taught in a baraita: With regard to friends who were reclining and eating a meal and uprooted themselves to go to the synagogue or to the study hall, when they exit, these foods do not require a blessing to be recited afterward, and when they return, these foods do not require an introductory blessing before resuming eating. R' Yehuda said: In what case is this statement said? When they left some of the friends there, at the meal. However, if they did not leave some of the friends there, when they exit, these foods require a blessing to be recited afterward, and when they return, these foods require an introductory blessing. According to Rav Naḥman bar Yitzḥak, the baraita that served as the basis of the Talmud’s objection to the explanation of Rav Ḥisda actually represents the minority opinion of R' Yehuda, whereas Rav Ḥisda holds in accordance with the majority opinion of the Rabbis.

אלא טעמא דבדברים הטעונין ברכה לאחריהן במקומן, דכשהן יוצאין ⁠— אין טעונין ברכה למפרע, וכשהן חוזרין ⁠— אין טעונין ברכה לכתחלה. אבל דברים שאין טעונין ברכה לאחריהן במקומן, אפילו לרבנן, כשהן יוצאין ⁠— טעונין ברכה למפרע, וכשהן חוזרין ⁠— טעונין ברכה לכתחילה,

The Talmud infers from the above baraita: The reason for this halakha is that it is only with regard to items of food that require a blessing after them in their place, that when the people eating them exit, these foods do not require a blessing to be recited afterward, and when they return, these foods do not require an introductory blessing. However, if they ate items of food that do not require a blessing that must be recited specifically in their place, even according to the opinion of the Rabbis, who disagree with R' Yehuda, when these people exit, these foods require a blessing to be recited afterward, and when they return these foods require an introductory blessing.