Mark 12:18-19

18 Then some Tz'dukim came to him. They are the ones who say there is no such thing as resurrection, so they put to him a sh'eilah:
19 "Rabbi, Moshe wrote for us that if a man's brother dies and leaves a wife but no child, his brother must take the wife and have children to preserve the man's family line.
Complete Jewish Bible Copyright 1998 by David H. Stern. Published by Jewish New Testament Publications, Inc. All rights reserved. Used by permission.