London: Britain on Thursday moved one step closer to a final separation from the EU as members of the UK parliament voted overwhelmingly in favour of allowing the government to begin Brexit negotiations.
Smith, 34, said last week she would be travelling from her Norwich North constituency to vote on "the central issue of our times".
And when she arrived in the chamber with her son Alastair, they got a warm welcome from Bercow.
"I say to the honourable lady,
don't be sheepish about it," the Speaker said.
"The little baby is welcome to come in. There's no problem," he said.
The Norwich North MP took her four-month-old through the voting lobby, where she also met Prime Minister Theresa May.
Smith and her husband Sandy McFadzean's son Alastair Hugh was born last September.
"Whichever way you look at it, this was a bit of history and it'll be a privilege to be able to tell our son he was there," Smith was quoted as saying.