New Living Translation
If he was single when he became your slave, he shall leave single. But if he was married before he became a slave, then his wife must be freed with him.

American Standard Version
If he come in by himself, he shall go out by himself: if he be married, then his wife shall go out with him.

Berean Study Bible
If he arrived alone, he is to leave alone; if he arrived with a wife, she is to leave with him.

Douay-Rheims Bible
With what raiment he came in, with the like let him go out: if having a wife, his wife also shall go out with him.

English Revised Version
If he come in by himself, he shall go out by himself: if he be married, then his wife shall go out with him.

King James Bible
If he came in by himself, he shall go out by himself: if he were married, then his wife shall go out with him.

World English Bible
If he comes in by himself, he shall go out by himself. If he is married, then his wife shall go out with him.

Young's Literal Translation
if by himself he cometh in, by himself he goeth out; if he is owner of a wife, then his wife hath gone out with him;

Exodus 21:3 Additional Translations ...