Halakhah su Deuteronomio 33:18

Every Jewish man must study the Torah, no matter whether he is poor or rich, whether he is healthy or suffering pain, whether he is young or very old. Even a beggar who goes from door to door must set aside a certain time for Torah study during the day and night, as it is written:²Joshua 1:8. "And you shall meditate in it day and night." If a person lacks the knowledge to study Torah or it is impossible for him [to study] because he is burdened with too many concerns, then he should support others who do engage in Torah study, and it will be considered as though he himself had studied, as our Rabbis of blessed memory, explained the verse: "Rejoice Zevulun in your going out and Yissachar in your tents."³Deuteronomy 33:18. Zevulun and Yissachar entered into a partnership; Zevulun engaged in business and supported Yissachar, so that he would be free to be engrossed in the study of Torah. Because of this, the Torah mentions Zevulun before Yissachar, since the Torah learning of Yissachar was made possible through the support of Zevulun. And so we find in the Mishnah: "Shimon the brother of Azaryah said …,"⁴Zevachim 1:2. Shimon is described as the brother of Azaryah, because Azaryah was engaged in business and provided the needs of his brother Shimon, who was engrossed in Torah study. They made an agreement between themselves, that Azaryah would have a share in Shimon's reward for [Torah] study. Even so, every person should do his utmost to study Torah, even just a little, every day and every night.