(ו) כִּ֣י יִקָּרֵ֣א קַן־צִפּ֣וֹר ׀ לְפָנֶ֡יךָ בַּדֶּ֜רֶךְ בְּכָל־עֵ֣ץ ׀ א֣וֹ עַל־הָאָ֗רֶץ אֶפְרֹחִים֙ א֣וֹ בֵיצִ֔ים וְהָאֵ֤ם רֹבֶ֙צֶת֙ עַל־הָֽאֶפְרֹחִ֔ים א֖וֹ עַל־הַבֵּיצִ֑ים לֹא־תִקַּ֥ח הָאֵ֖ם עַל־הַבָּנִֽים׃ (ז) שַׁלֵּ֤חַ תְּשַׁלַּח֙ אֶת־הָאֵ֔ם וְאֶת־הַבָּנִ֖ים תִּֽקַּֽח־לָ֑ךְ לְמַ֙עַן֙ יִ֣יטַב לָ֔ךְ וְהַאֲרַכְתָּ֖ יָמִֽים׃ (ס)
MISHNA: Anyone who performs one mitzva has goodness bestowed upon him, his life is lengthened, and he inherits the land, i.e., life in the World-to-Come. And anyone who does not perform one mitzva does not have goodness bestowed upon him, his life is not lengthened, and he does not inherit the land of the World-to-Come.
[omissions ...]
As it is taught in a baraita that Rabbi Ya’akov says: There is not a single mitzva written in the Torah whose reward is stated alongside it, which is not dependent on the resurrection of the dead, i.e., the reward is actually bestowed in the World-to-Come, after the resurrection of the dead. With regard to honoring one’s father and mother it is written: “That your days may be long, and that it may go well with you” (Deuteronomy 5:16). With regard to the dispatch of the mother bird from the nest it is written: “That it may be well with you, and that you may prolong your days” (Deuteronomy 22:7).
Rav Yosef said: Had Aḥer, literally Other, the appellation of the former Sage Elisha ben Avuya, interpreted this aforementioned verse: “That it may go well with you” (Deuteronomy 5:16), homiletically, as referring to the World-to-Come, as did Rabbi Ya’akov, son of his daughter, he would not have sinned. The Gemara asks: And what caused Aḥer to sin? There are those who say he saw a case like this, where a son went up to the roof on his father’s command, dispatched the mother bird, and then died. It was witnessing this episode that led Elisha ben Avuya astray.