Manava Dharmashastra 4.219

4.219

kārukāḥ sūpakārādayaḥ nātigarhitakarmāṇaḥ | eṣa eteṣāṃ śilpibhyo bhedaḥ | prajāyā vighāto'nutpattiḥ |

Medhātithi’s commentary (manubhāṣya):
‘Artisans,’—the professional cook and others following not very low crafts;—this is what distinguishes these from other craftsmen.

The ‘impairing’ of offspring means that children are not born.—(219)