Exodus 21:30
"If there be laid on him a sum of money, then he shall give for the ransom of his life whatsoever is laid upon him."
Cross References (ranked by relevance)
Exodus 21:22
If men strive, and hurt a woman with child, so that her fruit depart from her, and yet no mischief follow: he shall be surely punished, according as the woman’s husband will lay upon him; and he shall pay as the judges determine.
Exodus 30:12
When thou takest the sum of the children of Israel after their number, then shall they give every man a ransom for his soul unto the LORD, when thou numberest them; that there be no plague among them, when thou numberest them.
Proverbs 13:8
The ransom of a man’s life are his riches: but the poor heareth not rebuke.