Bhagavatapurana 9.7.14

9.7.14

punarjātā yajasveti sa pratyāhātha so 'bravīt /
sānnāhiko yadā rājan rājanyo 'tha paśuḥ śuciḥ //

14. “They have grown again, do thou sacrifice”, said he. Harischandra said, “when he wears armour, O king, a Kshatriya becomes pure to be a sacrificial animal”.