Manava Dharmashastra 4.101

4.101

imānvakṣyamāṇānanadhyāyānadhīyāno vivarjayet | adhyāpanaṃ ca kurvāṇaḥ | adhyāpanagrahaṇamanadhīyato grahaṇārthamabhyāsārthaṃ ca |
nityam notsargādeva prabhṛti | kiṃtarhyardhapañcameṣvapi māseṣūpākarmaṇaḥ prabhṛti |
śiṣyāṇām | anuvādaḥ |

Medhātithi’s commentary (manubhāṣya):
‘These’—i.e., those going to be described;—‘he shall avoid who is reading the Veda, as also the person who does the teaching.’ Inasmuch as the work of teaching is mentioned, the reading of the Veda for the purpose of repeating and getting up (the old lessons) is permitted (on the days specified).

‘Always;’—i.e., not only after the performance of the ‘Utsarga’-rite, but also during the four months and a half, following the ‘Upākarma’ rite.

‘Of pupils’— this is only an explanatory reiteration.—(101)