Matthew 5:40
"And if any man will sue thee at the law, and take away thy coat, let him have thy cloak also."
Cross References (ranked by relevance)
Luke 6:29
And unto him that smiteth thee on the one cheek offer also the other; and him that taketh away thy cloak forbid not to take thy coat also.
1 Corinthians 6:7
Now therefore there is utterly a fault among you, because ye go to law one with another. Why do ye not rather take wrong? why do ye not rather suffer yourselves to be defrauded?