Many economists have argued a no-deal Brexit would cause economic turmoil and plunge Britain into recession.
Boris Johnson at his campaign launch.
He warned that Corbyn must not be allowed to win an election.
Commenting on the motion, Rory Stewart said: "For the avoidance of any doubt - I have read the Labour motion proposed for tomorrow and I will NOT be voting for it".
She told BBC Radio 4's Today programme: "This is about that safety valve, that lock in the process, so that somebody who may find themselves elected a leader of the Tory Party on a promise of, in Dominic Raab's case, proroguing Parliament, and locking Parliament out of this process - they can't do that".
The victor of the contest to lead the Conservative Party will become the next prime minister.
"That's why we are taking this latest measure to end the uncertainty and protect communities across the country".
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Labour leader Jeremy Corbyn has said a no-deal Brexit would be "disastrous", telling MPs: "I think some of [the PM's] colleagues need reminding of that".
Speaking in the Commons, Snell said ceramics firms asked him "time and time again" to back a deal so they could make preparations for the future while food manufacturers wanted him to make a decision so they could "get past stockpiling".
Brexiteers such as Dominic Raab and Esther McVey have said the priority must be honouring the 2016 referendum result and the United Kingdom should be prepared to accept no deal.
"After three years and two missed deadlines, we must leave the European Union on October 31", he said as a heckler repeatedly yelled "Bollocks to Boris" from outside the Royal Academy of Engineering, just off The Mall in central London.
Mr Johnson has kept a low profile in the race to succeed Theresa May so far, his only significant intervention being a pledge - immediately criticised by his rivals - to cut income tax bills for people earning more than £50,000 a year.
"If we're trying to connect with the next generation and move forward as a country then I think it's time for the next generation with a bold new agenda", the Home Secretary said.
One of the reasons the public "feels alienated" from politicians is because "we are muffling and veiling our language", he added.
After Michael Gove's admission that he had taken cocaine in the past, Mr Johnson sidestepped a question as to whether he had also used the drug.