Midrash for Taanit 4:4
כָּל יוֹם שֶׁיֶּשׁ בּוֹ הַלֵּל, אֵין בּוֹ מַעֲמָד בַּשַּׁחֲרִית. קָרְבַּן מוּסָף, אֵין בּוֹ בַנְּעִילָה. קָרְבַּן עֵצִים, אֵין בּוֹ בַמִּנְחָה, דִּבְרֵי רַבִּי עֲקִיבָא. אָמַר לוֹ בֶן עַזַּאי, כָּךְ הָיָה רַבִּי יְהוֹשֻׁעַ שׁוֹנֶה, קָרְבַּן מוּסָף, אֵין בּוֹ בַמִּנְחָה. קָרְבַּן עֵצִים, אֵין בּוֹ בַנְּעִילָה. חָזַר רַבִּי עֲקִיבָא לִהְיוֹת שׁוֹנֶה כְבֶן עַזַּאי:
On those days on which <i>Hallel</i> is sung, the standing men used not to attend during the morning prayer [in Jerusalem]. When there was an additional offering of the <i>korban mussaf</i>, they did not assemble at the time of the closing prayer. When a wood-offering 6 was brought, they did not assemble during the afternoon prayer. So says Rabbi Akivah; but Ben Azzai said to him, "Rabbi Yehoshua taught as follows: When there was an additional offering, the standing men did not assemble during the afternoon prayers; when a wood-offering was brought, they did not assemble at the time of the closing prayer." Then Rabbi Akivah changed [his opinion] and taught like Ben Azzai.