Cease Animalistic Karma

A slightly different book version found:

畜牲本是人来做,
人畜轮回古到今。
若不披毛并戴角,
劝君休使畜性心。

– 普庵禅师

Animals [including livestock] originally were humans,
[who have] become [them, as] humans and animals
[are] reborn [as one another from] ancient times till [the] present,
[and as other beings].
If not [wishing to] wear fur and bear horns,
[I] urge you [to] make [your] animalistic[ally
greedy, hateful and deluded] mind end.

– Chan Master Pu’an