Once the minimum number is received (at least 54) a vote of confidence will follow shortly afterwards.
Mr Johnson said his victory was “decisive” and “convincing”, and told members of his cabinet it was time to “draw a line” under questions about his leadership.
But his sentiment is not shared by Dr Rod Dacombe, Director at the Centre for British Politics and Government from King’s College London, who described the results as “anything but convincing and decisive”.
Dr Dacombe said the result would “sting” for the PM and that “even privately” Mr Johnson and those close to him would acknowledge the damage caused by a vote of confidence taking place.