Shiva Purana

siva.sh/siva-purana/kotirudra-samhita/25/32

तृणस्तंबेन सा स्पृष्टा पपात पृथिवीतले ।। मृता च तत्क्षणादेव तदृषेः पश्यतस्तदा ।। ३२ ।।

sanskrit

No sooner was it touched by the blades of grass than the cow fell down dead even as the sage was watching it.

english translation

tRNastaMbena sA spRSTA papAta pRthivItale || mRtA ca tatkSaNAdeva tadRSeH pazyatastadA || 32 ||

hk transliteration by Sanscript