The Compendium of Bheḷa 1.18.17

1.18.17

ūrū cāsya pravepete sadoṣāsanasevayā | duṣṭe tu śayane rūpaṃsuptiḥ kaṇḍūyate bhṛśam ||

and his thighs tremble from using a tainted seat. / When a bed is tainted, the sign is numbness, and it itches intensely;