Manava Dharmashastra 1.102

1.102

sarvasyāḥ brāhmaṇastuteḥ phalapradarśanārtha śloko'yam | evaṃvidhamidaṃ mahārtha śāstraṃ yattasya-svamahimnā'tyantikena mahattamasya brāhmaṇasya-karmaviveqārthaṃ-imāni karmāṇi kartavyāni imāni varjyāṇi-eṣa vivekastadartham | śeṣāṇāṃ ca kṣatriyādīnām | ānupūrvyaśaḥ prādhānyādbrāhmaṇasyānuṣaṅgātkṣatriyādīnāmidaṃ śāstramakalpayatkṛtavān |

It was for the purpose of regulating the actions of the Brāhmaṇa,—and incidentally of others also,—that the wise Manu Svāyambhuva Elaborated these institutes.—(102)

Medhātithi’s commentary (manubhāṣya):
This verse serves the purpose of indicating the upshot of the entire eulogium pronounced on the Brāhmaṇa (in the foregoing verses);—[the sense being]—‘These institutes are so important that they serve the purposes of the Brāhmana who is endowed with a high degree of supremacy due to his own inherent excellence’;—‘for the puryose of regulating the actions,’—i.e. for the purposes of regulating, in the form ‘such and such acts should be done, and such and such others should be avoided’;—‘of others also,’ i.e. of the Kṣatriya and the rest;—‘Incidentally,’—i.e. primarily for the Brāhmaṇa, and only incidentally for the Kṣatriya and other castes;—‘he elaborated.’—set forth,—‘these institutes .’—(102)