'We've listened carefully and in light of the expressed will of the House we will publish the final and full advice provided by the Attorney General to Cabinet but recognising the very serious constitutional issues this raises I have referred the matter to the privileges committee to consider the implications of the humble address'.
Shortly after the vote of contempt, an amendment to hand Parliament more power over Brexit should the vote on May's deal fail, also passed.
With just seven days left to try to turn the overwhelming opposition for her Brexit deal around, the prime minister deployed her attorney general - an ardent Eurosceptic - to the dispatch box to try to sell her deal.
Rejecting it would leave the United Kingdom facing the prospect of a chaotic "no-deal" Brexit, but May's chances of winning majority backing for the deal appear slim.
Keir Starmer commented: "Today's finding of contempt is a badge of shame for this government".More news: Warriors star Curry discusses his return from injury
Mr Bercow was responding to a call from senior MPs in six parties - Labour, the Lib Dems, the SNP, the Democratic Unionist Party, Plaid Cymru and the Green Party - for contempt proceedings to be launched. If, against the odds, May wins, Britain will leave the European Union on March 29 on the terms she negotiated with Brussels - its biggest shift in trade and foreign policy for more than 40 years.
The PM will have 21 days to give a statement as to what she intends to do next, but during that time Labour could table a no confidence motion in the Commons, which could force her out if she loses.
But the problem - seven days out from the vote - hasn't changed: Up to 100 Conservative MPs quite simply think this deal is so bad that they are not prepared to vote for it.
The UK should be able to unilaterally cancel its withdrawal from the EU, according to a top European law officer.
Jo Maugham, a British lawyer who helped bring the case, said it "puts the decision about our future back into the hands of our own elected representatives - where it belongs".
Britain's Prime Minister Theresa May at the G20 summit in Buenos Aires, Argentina December 1, 2018.
It comes after one of the EU's top law officers, the advocate general Manuel Campos Sanchez-Bordona, stated on Tuesday his advice to the European Court of Justice (ECJ) that the United Kingdom could unilaterally stop Brexit by revoking Article 50.