Vedavyasasmriti 112

112

itihāsaparāṇānāṃ vedopaniṣadāṃ dvijaḥ .
śaktyā yamyak‌paṭhennityamalpamapyā samāpanāt .. 3.10 ..

of the Itihāsas and Purāṇas, and of the Vedic Upaniṣads; / according to his ability, a twice-born should read properly every day, even a little, until completion.