Dominic Grieve has said he'll quit the Conservative party if Boris Johnson becomes leader.
Johnson remains a backbench member of Parliament and contender to replace May in a future contest for power.
The party confirmed it had received complaints but declined to give details Thursday, saying that the process is confidential.
Former Foreign Minister Boris Johnson sparked a row over Islamophobia by describing Muslim women wearing burqas as "ridiculous" and "weird".
"We need responsibility and action from our politicians, not pandering to the far-right".
Liverpool's centre back shortage not a problem for Jürgen Klopp
It helps not only Loris, it helps Alisson as well, that you can see this is a very special place. "There are no doubts about Hendo".
Hodgson believes star player will stay despite Chelsea and Spurs interest
Crystal Palace are reluctant to sell their star man so close to the deadline, however, and value Zaha at around £70million. As per Mirror , Wilfried Zaha is keen on departing Palace this window, and could put in an official transfer request soon.
Conor McGregor to Fight in UFC 229 on October 6
GSP has not fought since defeating Michael Bisping to win the UFC middleweight title at UFC 217 last November. It's not hyperbole to say the fight will probably be the biggest-seller in the history of mixed martial arts.
Shortly after the publication of his article on Monday, a source close to Mr Johnson said that it was "ridiculous" that his views should be under attack. The panel has the power to refer Johnson to the Conservative Party's board, which could impose sanctions on Johnson, suspend his membership, or even expel him from the party.
An independent panel will examine the complaints against Johnson. By a narrow margin of 48 per cent to 45 per cent they thought he did not need to say sorry for his comments.
Given a deliberate choice was made to inflame tensions in a way that makes it easier for bigots to justify hate crime against us, we concur with Conservative peer, Lord Sheikh, who has demanded the whip be withdrawn from Mr Johnson.
Other than Armeena Khan, the former United Kingdom mayor had received responses from many other personalities including former Attorney General Dominic Grieve, Theresa May, Brandon Lewis and Ruth Davidson.
Asked about Mrs May's handling of the controversy, Mr Rees-Mogg told LBC radio: "She's clearly wrong to have asked him to have apologised".
The comments were made in Johnson's weekly column for Britain's Daily Telegraph newspaper, in which he was criticizing Denmark's recent implementation of a burqa ban.
In a letter to The Times, Taj Hargey of the Oxford Islamic Congregation said there was "no Koranic legitimacy" for the burka, which he said had been used as part of a "gateway theology for religious extremism and militant Islam".