The Law Code of Yājñavalkya 3.2.26

3.2.26

iti manusmaraṇāt | gandhāś candanāguruprabhṛtayaḥ | sarvān etān vaiśyavṛttyā jīvan brāhmaṇaḥ kadācid api na vikrīṇīta | kṣatriyādes tu na doṣaḥ | ata eva nāradena,

in accordance with the traditional text of Manu. "Perfumes" are sandalwood, agallochum, and the like. Living by the occupation of a Vaishya, a Brahmin must never sell any of these. But for a Kshatriya and others, there is no fault. For this very reason, Nārada