Beitzah 36B

אלא אימא: ובלבד שלא יעשנה מצודה. פשיטא! מהו דתימא: במינו נצוד ⁠— אסור, שלא במינו נצוד ⁠— מותר, קא משמע לן.

but rather say the following: Provided he does not make it a trap as he covers it, i.e., as long as he takes care not to cover all the openings. The Talmud questions this: But it is obvious that it is prohibited to directly trap bees on Shabbat; why would the baraita mention it? The Talmud responds: It does inform us of something that is not obvious: Lest you say: An animal whose type is generally trapped and hunted by people for some purpose is prohibited to be trapped on Shabbat, whereas an animal whose type is not generally trapped, such as a bee, is permitted to be trapped even ab initio, as this is not considered to be the normal manner of hunting. The baraita therefore teaches us that one may not in fact trap bees.

רב אשי אמר: מי קתני בימות החמה ובימות הגשמים? בחמה מפני החמה ובגשמים מפני הגשמים קתני ⁠— ביומי ניסן וביומי תשרי, דאיכא חמה, ואיכא גשמים, ואיכא דבש.

Rav Ashi said a different elucidation: Is it taught in the baraita: In the summer, and: In the winter? No, it is taught: In the sun due to the sun and in the rain due to the rain. The baraita speaks not of the summer and the winter, but of the spring days of Nisan and the autumn days of Tishrei, when there is sometimes sun and there is sometimes rain, and when there is also honey in the hive. It is possible, then, that the baraita permits covering the hive during these seasons because of the honey that is in it, as initially proposed.

ונותנין כלי תחת הדלף בשבת. תנא: אם נתמלא הכלי ⁠— שופך ושונה, ואינו נמנע.

§ It was taught in the Mishnah: And one may place a vessel beneath a leak in order to catch the water on Shabbat. A Sage taught in a baraita: If the vessel became full with the leaking water, he may pour out its contents, place the vessel back under the leak, and repeat the entire process if necessary, and he need not refrain from doing so.