Mark 10:2-5 New American Standard Bible (NASB)

2. Some Pharisees came up to Jesus, testing Him, and began to question Him whether it was lawful for a man to divorce a wife.

3. And He answered and said to them, "What did Moses command you?"

4. They said, "Moses permitted a man to write a certificate of divorce and send her away."

5. But Jesus said to them, "Because of your hardness of heart he wrote you this commandment.

Mark 10