One verse

Srimad Bhagavatam 9.9.31

9.9.31

तस्य साधोरपापस्य भ्रूणस्य ब्रह्मवादिन: । कथं वधं यथा बभ्रोर्मन्यते सन्मतो भवान् ॥ ३१ ॥

tasya sadhor apapasya bhrunasya brahma-vadinah katham vadham yatha babhror manyate san-mato bhavan

tasya
of him
sadhoh
of the great saintly person
apapasya
of one who has no sinful life
bhrunasya
of the embryo
brahma-vadinah
of one who is well versed in Vedic knowledge
katham
how
vadham
the killing
yatha
as
babhroh
of a cow
manyate
you are thinking
sat-matah
well recognized by higher circles
bhavan
your good self.

You are well known and worshiped in learned circles. How dare you kill this brahmana, who is a saintly, sinless person, well versed in Vedic knowledge? Killing him would be like destroying the embryo within the womb or killing a cow.