One verse

Srimad Bhagavatam 8.8.2

8.8.2

तामग्निहोत्रीमृषयो जगृहुर्ब्रह्मवादिन: । यज्ञस्य देवयानस्य मेध्याय हविषे नृप ॥ २ ॥

tam agni-hotrim rsayo jagrhur brahma-vadinah yajnasya deva-yanasya medhyaya havise nrpa

tam
that cow
agni-hotrim
absolutely necessary for the production of yogurt, milk and ghee to offer as oblations in the fire
rsayah
sages who perform such sacrifices
jagrhuh
took in charge
brahma-vadinah
because such sages know the Vedic ritualistic ceremonies
yajnasya
of sacrifice
deva-yanasya
which fulfills the desire to be elevated to the higher planetary systems and to Brahmaloka
medhyaya
fit for offering oblations
havise
for the sake of pure clarified butter
nrpa
O King

O King Pariksit, great sages who were completely aware of the Vedic ritualistic ceremonies took charge of that surabhi cow, which produced all the yogurt, milk and ghee absolutely necessary for offering oblations into the fire. They did this just for the sake of pure ghee, which they wanted for the performance of sacrifices to elevate themselves to the higher planeary systems, up to Brahmaloka.