The discussion in **Gemara Berachos** on page 11b, as explored in the heading of **Tosafot** beginning with the words "since he already fulfilled his obligation through **Ahaba Raba**," addresses a fundamental question regarding the blessings recited over Torah study. The **Gemara** establishes that once a person recites the morning blessing of **Ahaba Raba**—or **Ahavas Olam**—prior to the **Krias Shema**, he is exempt from reciting the specific **Birchas HaTorah**. This is because the themes of love for the Torah contained within that blessing serve as a substitute for the standard blessings on Torah study.
However, **Tosafot** introduces a significant qualification from the **Yerushalmi**. According to that source, the ability of **Ahaba Raba** to exempt one from the blessings of the Torah is contingent upon the individual studying immediately after the blessing is recited. This requirement ensures that the blessing is directly connected to an act of study, thereby activating its halachic force. This ruling prompts a difficult question regarding common practice: many people recite their morning blessings and participate in the **Shacharis** service, but then immediately depart for work. If they do not sit down to engage in formal study until the middle of the day or even later, should they be required to recite **Birchas HaTorah** again when they finally begin to learn?
To resolve this, **Tosafot** offers two primary defenses for the prevailing custom. First, it suggests that our primary legal tradition follows the **Bavli**, which does not explicitly require study to follow the blessing immediately. Therefore, even if a significant amount of time passes before one begins to learn, the morning blessing remains valid. Second, **Tosafot** draws a distinction between the different types of blessings. The strict requirement of the **Yerushalmi** to study immediately may apply only when one is relying on **Ahaba Raba** to fulfill the obligation. Since **Ahaba Raba** was primarily instituted as a blessing for the **Krias Shema** rather than for Torah study itself, it requires an immediate act of learning to demonstrate its secondary function. In contrast, the standard formulations of **Birchas HaTorah**—such as the blessings to "engage in the words of Torah" or "who has chosen us"—are essentially and exclusively dedicated to Torah study. These primary blessings are robust enough to cover the entire day, regardless of when the study actually takes place.
This discussion leads to a comparison with the laws of the booth used during the festival of Tabernacles. One might ask why Torah study is different from eating in a Sukkah; after all, a person must recite a new blessing to dwell in the Sukkah every time they return for a new meal. If a lapse of time requires a new blessing for the Sukkah, why does it not require a new blessing for Torah study? **Tosafot** explains that Torah study is unique because a person never truly turns their mind away from the obligation to learn. Because the commandment is to meditate on the Torah "day and night," a person is constantly bound by the requirement to study. Consequently, any time spent away from books is not considered a true interruption or a lapse of attention, but rather a temporary pause in a continuous, day-long obligation. Eating in a Sukkah, by contrast, occurs at set times; once a meal is finished, a person’s mind typically moves on to other matters until the next meal, creating a definitive halachic interruption.
Following this logic, **Tosafot** also addresses why we do not recite a specific blessing before sleeping in the Sukkah. One explanation is that the blessing made over eating and dwelling in the Sukkah covers all secondary activities, including sleep. Another reason is the concern that one might not actually fall asleep, which would render the blessing a wasted blessing. Since falling asleep is not entirely within a person's control, the sages did not institute a blessing that could so easily be recited in vain.
Regarding the continuity of the Torah blessing into the night, **Rabbeinu Tam** held that if a person wakes up in the middle of the night to study, they do not need to recite **Birchas HaTorah** again, as they can rely on the blessing made the previous morning. **Tosafot**, however, disagrees with this view, arguing that a full night's sleep constitutes a complete interruption that necessitates a new blessing. Despite the general ruling that immediate study is not strictly required, **Tosafot** notes that the **Tzarfatim** in France maintained a custom of reciting various verses, such as the **Birkat Kohanim**, as well as passages from the **Mishna** and **Braita**, immediately after their morning blessings. They did this specifically to satisfy the stringency of the **Yerushalmi** by ensuring that some form of study followed the blessing without delay. Nevertheless, **Tosafot** concludes that this is not strictly necessary, both because the **Bavli** does not demand it and because the requirement was originally limited to the specific case of the **Ahaba Raba** blessing.