Whose cows/cattle did Hermes steal when he was a baby?

Soon after he was born, Hermes snuck away from his mother and stole Apollo's cattle.

"The son of Zeus and Maia (a daughter of the Titan Atlas), Hermes was born in a cave on Mount Cyllene in Arcadia in southern Greece. Nursed by the nymph Cyllene, the precocious young boy grew incredibly fast. Within hours of birth, he had wandered out of his cave, killed a tortoise, and stretched seven strings of sheep gut across it to build the first lyre. He then quickly taught himself how to play.

That same day, the baby Hermes slipped out of his mother's sight and went searching for adventure. When he found himself in the pastures of the gods, Hermes impulsively stole 50 cows from Apollo, then still the herdsman of the gods. Though he had been in the world less than a day, Hermes already had a cunning mind. He disguised his tracks by cobbling together “shoes” made of bark from a fallen oak tree. To make it even harder to track him, he confused the herd's trail by driving the cows backward and traversing sandy places that left no prints.

While driving the cattle, he came across an old man named Battus. Hermes bought the old man's silence, but the young god doubted whether he could trust the stranger. So he disguised himself and returned, offering a reward for any news of the stolen cattle. Battus quickly sold him out, telling him what he knew, so Hermes punished the old man by turning him to stone." Follow the link below to read the whole legend!