Manava Dharmashastra 2.91

2.91

kāryamidānīmeṣāmāha svarūpāvadhāraṇārtham | na hi tāni pratyakṣāni | buddhīndriyāṇi buddherindriyāṇi janakāni kāryakāraṇāni | kāryakāraṇasambandhe ṣaṣṭhī |
śrotrādīnyanupūrvaśaḥ | ādiśabdasya prakārārthatā mā vijñāyīti anupūrvaśaḥ krameṇetyarthaḥ | kramaśca sanniveśāpekṣo bhavantaḥ pūrvaślokoktā vyavasthā''śrīyate |
karmendriyāṇi | parispandātmakamatra karma vivakṣitam |

Of these the five beginning with the Ear in due order they call “Organs of Sensation’; and five of these, beginning with the Anus, “Organs of Action.”—(91)

Medhātithi’s commentary (manubhāṣya):
The author now proceeds to describe the functions of the organs, with a view to determine their precise nature. [This is necessary, because] they are not perceptible.

‘Organs of Sensation’;—i.e., the organs productive of sensation; they bring about effects in the form of sensations. The Genitive (in the compound ‘buddhīndriyāṇāṃ’) denotes the relation of cause and effect.

‘Beginning with the Ear, in due order’;—the phrase ‘in due order’ has been added w ith a view to prevent the notion that the term ‘ādi’ signifies kind. “Order” again is in accordance with position; hence what is meant is the order in which the organs have been mentioned in the foregoing verse.

‘Organs of action’;—it is the ‘action’ of motion that is meant here.—(91)

Comparative notes by various authors
(Verses 89-92)
See Comparative notes for Verse 2.89.