Uttarajjhayana 128.1.36

128.1.36

18 kilinnagāe mehāvī | paṃkeṇa va raeṇa vā /
ghiṃsu vā pariyāveṇa | sāyaṃ no paridevae ||36||

When by the heat of summer his body sweats and is covered with dirt and dust, a wise monk should not lament his loss of comfort. (36)
He should bear (all this), waiting for the destruction of his Karman, (and practising) the noble, excellent Law; he should carry the filth on his body till he expires. (37)