Manava Dharmashastra 4.20

4.20

'samadhigamo''bhiniveśaḥ abhyāsa iti yāvat | vijānāti viśeṣeṇa jānātipratyakṣaṃ caitadabhyasyamāne granthe'pi yadvicata iti | tadā vijjñānaṃ cāsya rocate | ujjvalaṃ bhavatītyarthaḥ | pūrvasyāḥ smṛtermūlakathanametat | rucerabhilāṣārthatvādrucyarthānāmiti sampradānatvābhāvaḥ |

Medhātithi’s commentary (manubhāṣya):
‘Study’ here stands for application, repeated muling.

‘Under stands’—i.e., when one studies a treatise repeatedly, one comes to comprehend fully what is contained in it.

‘Then his knowledge shines forth’;—i.e., becomes bright. This verse states the reason for the foregoing verse.

The root ‘ruc’ governs the Dative only when it is used in the sense of ‘longing for;’ and, as it does not convey that meaning here, we do not have the Dative.—(20)