You are well known and worshiped in learned circles. How dare you kill this brāhmaṇa, 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.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
तस्य साधोरपापस्य भ्रूणस्य ब्रह्मवादिनः । कथं वधं यथा बभ्रोर्मन्यते सन्मतो भवान्
tasya sādhorapāpasya bhrūṇasya brahmavādinaḥ | kathaṃ vadhaṃ yathā babhrormanyate sanmato bhavān
SB 9.9.31