A Ukip peer was accused of talking "nonsense" for referring to "good Muslims" before warning of rising working-class anger against "Islamification" of communities.
Lord Pearson of Rannoch tabled a question asking for the Government to outline what assessment it has made of the future growth of the Muslim population in England and the impact on the relationship between Sharia law and domestic law.
Home Office minister Baroness Williams of Trafford said no assessment of current or future growth of any faith population has been made, adding Sharia law has no jurisdiction in England and Wales.
Lord Pearson criticised the answer before adding: "Good Muslims must follow Muhammad's example and impose Sharia law on their hosts when they are..."
Labour peers sat nearby interrupted Lord Pearson with shouts of "rubbish" and "nonsense", before he continued: "When they are strong enough to do so.
"Because several of our local authorities will soon be Muslim-majority and because anger is already rising among our kafir working-class at the Islamification of their communities.
"So first can I again ask the Government whether they will require all teaching in our mosques and madrasas to be in English?
"And second, can I yet again ask them to foster open national debate about Islam to include our Muslim friends so we can all understand with what we may be dealing in a few years time?"
One Labour peer could be heard saying: "Could you sit somewhere else for your next question?"
Lady Williams replied: "I think the House would agree that points about 'good Muslims' and 'bad Muslims' are really not for this House - I was just wondering if I in that context am a good Catholic or a bad Catholic, but I really don't think that that sort of thing has any place in your Lordships House or indeed in society.
"In terms of English being spoken in madrasas, we don't prescribe that but one thing we do absolutely acknowledge is that English language skills are absolutely fundamental to taking advantage of all the opportunities of living in modern Britain - getting a job, mixing with people and playing a full part in community life.
"In terms of the national debate, the Government has no plans to hold a national debate on Islam."
Baroness Tonge, a non-affiliated peer, jokingly asked the Government to launch an investigation into the "growth of people named Pearson in this country and assess what effect it is having on racial harmony".
By Richard Wheeler
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