Penal Code Section 326A
Punishment for causing hurt by spouse
326A. Whoever, during the subsistence of a valid marriage, causes hurt to his spouse and commits an offence under section 323, 324, 325, 326, 334 or 335 shall be punished with imprisonment for a term of twice as long as the maximum term for which he would have been liable on conviction for that offence under the relevant section.
Please refer to the Attorney General's Chamber of Malaysia's website for the latest law.