PETALING JAYA (THE STAR/ASIA NEWS NETWORK) - The Sultan of Selangor has ordered the state's Islamic Council to revoke the preaching credentials of Muslim preacher Zamihan Mat Zin in the state.

The secretary of the Selangor Council of the Royal Court, Hanafisah Jais, said Sultan Sharafuddin Idris Shah had consulted the council before issuing the instruction, The Star reported.

"This follows a religious lecture by Zamihan which contained words that are racist, ill-mannered and excessively critical of the royal institution," it said in a statement.

"The lecture also took place at a royal mosque where such religious lectures should not take place," the statement added.

The Sultan also decreed that all mosque and surau (prayer hall) committees must now videotape all lectures held at their grounds for content monitoring purposes.

He also decreed that public address (PA) broadcasts of all mosques and surau lectures be limited to the compound of the facilities.

"The Malay rulers are of the opinion that the image of Islam as the federal religion is a religion that should encourage its followers to be tolerant, moderate, inclusive and not polluted by extreme actions," said Hanafisah.

The statement added that Sultan Sharafuddin reminded all Selangor citizens to respect the main principles in the Federal Constitution for the country's harmony and peace.

Zamihan was detained last week for investigations into possible sedition after he gave a religious lecture in which he criticised a sultan - understood to be the Johor ruler - for barring a Muslim-only launderette in the state.

In a video uploaded on YouTube, Zamihan said: "There was a sultan who had said Muslim-friendly launderettes are not allowed in his state. It is not right for the sultan to say such things."

The preacher had also said that Chinese people were unhygienic and should patronise "normal" launderettes.

He has since apologised to the Johor Sultan and is out on bail.