B.G 2.52
यदा ते मोहकलिलं बुद्धिर्व्यतितरिष्यति। तदा गन्तासि निर्वेदं श्रोतव्यस्य श्रुतस्य च ॥२-५२॥
yadā tē mōhakalilaṁ buddhirvyatitariṣyati। tadā gantāsi nirvēdaṁ śrōtavyasya śrutasya ca ॥2-52॥
When your intellect overcomes the cloud of delusion, then you attain fully the continued benefits of the knowledge from what's already been heard and what remains to be heard.
Gīta Bhāshya 2.52
'nirvēdaṁ' - means continued benefits from knowledge. The liberated find greater joy in praising the lord. All liberated individuals experience immense joy and no misery, despite a hierarchy based on their knowledge.
To what extent the seeker of liberation is required to perform actions pertaining to their duties is explained in 'yadēti' verse.
'nirvēdaṁ' means continued benefits. We can find similar usage at:
"Therefore, a brahmin must continue to study from childhood to develop deep understanding."
- there are such statements (Here 'nirvidya' is used to mean continued study, not as a negative). Certainly, 'obtaining detachment' is not advocated here. If so, usage should have been - 'pāṇḍityāt' (and not 'pāṇḍityaṁ').
The knowledgeable will never develop distaste towards listening to the glories of the lord.
"The self contained ascetics, though not desirous of higher order, certainly perform overwhelming devotion to the lord Hari who is full of auspicious qualities."
- states the proverb. Sages like Shuka practice it as well. It doesn't mean there is no happiness. They derive enhanced bliss from such activities (i.e. by performing overwhelming devotion to the lord).
"O lord that bliss of yours that fills the breast of those through meditation of your lotus feet or through hearing the stories of your devotees is because of your glory. No where else such bliss is possible, then what to say about those falling from the plane hit by the sword of death"
-such are the proverbs.
We have already established that they too, even the liberated, obtain the results of worship. They are subjected to the acquired hierarchy. Because, if hierarchy doesn't exist:
"They do not care even for your grace, responsible for liberation."
"Some do not desire even oneness with me."
"Even when offered, they do not accept oneness."
Thus, even when liberation is not desired, liberation only is the end result. Even those who desire liberation become greatly satisfied. When this is so, why is it not appropriate to praise those who are desireless? There are proverbs such as:
"Among the knowledgeable, the way the devotion varies towards the lord in the current world, correspondingly after transcending the physical body, the liberated state is unique. Yōgis with varying bodies, obtain corresponding manifested forms. Certainly the supreme bliss obtained is always as per hierarchy."
- states thus.
"None will surpass you, even in liberation, at any point in time. By the Yōga of devotion to myself, with transcendental knowledge, you will surpass all others."
-states thus, as well.
Statements that express likeness (among those who are liberated) pertain to the abundance of joy while simultaneously avoiding suffering. Hence, it is said:
"Absence of misery, bliss that is of transcendental nature, and not having physical body - are all the same (among the liberated) is the ascertained opinion. Even then, the transcendental bliss differs based on the difference in the knowledge."
-stated thus in Nārāyana Ashtāksharakalpa.
Therefore, detachment towards hearing and studies is not conveyed in this verse (by 'nivēda'). It is not appropriate to take negative meaning when there are other similar usages where positive meaning can be derived. "Understanding the significance of what is said, and what is going to be said, one obtains fruits of Vedas" - is the meaning.