Is it a sin for a husband to lie to his wife about his second marriage?

Lying continually to hide a marriage is wrong and can lead to many kinds of injustice. Although the Shariah does not require the wife's permission, honesty is the foundation of trust between husband and wife. The Prophet ﷺ said that truthfulness leads to goodness and lying leads to wickedness. A secret marriage also usually means no court permission, an unfair rotation and a new wife whose rights are unprotected. In Malaysia, practising polygyny without court permission is an offence. The right way is to be open and follow the lawful procedure .