In Mackenzie Brown's paper titled Purāṇa as Scripture, we see a reference wherein it says that,
Mahabharata, as well as the ancient Smriti writer Vṛddha Gautama(of the Dharmaśāstra) proclaims, "Veda-sellers and those who dishonor the Vedas and also those who write down the Vedas shall go to hell."
My questions are as follows:
1) Which verses of the Mahabharata expressly prohibit the writing down of Vedas? 2) Was the concept of 'Writing' elucidated or mentioned in the Śruti?