Atri Smriti 5.20

5.20

bhūmigaiste samājñeyā na tairaprayato bhavet
ācānto'pyaśucistāvadyāvatpātramanuddhṛtam

are to be considered as belonging to the earth; one does not become impure by them; / even though he has sipped water, he remains impure as long as the dish is not removed;