Shiva Purana
पीडयंत्यतिभारेणाऽसहंतं वाहयंति च ॥ योजयन्नकृताहारान्न विमुंचंति संयतान् ॥ ३२ ॥
Those who ill-treat bullocks with weighty burden; those who make them draw heavily-laden carts; those who do not let them off free for leisure.
english translation
pIDayaMtyatibhAreNA'sahaMtaM vAhayaMti ca ॥ yojayannakRtAhArAnna vimuMcaMti saMyatAn ॥ 32 ॥
hk transliteration by Sanscript