The member of parliament was accused of making Islamophobic comments in an article about the burka.
The Grand Mufti's office expressed surprise at Le Pen's public reaction to headscarf, claiming she had not expressed concern when informed of the plans prior to the engagement.
Wearing a burka or niqab in public has been outlawed in Ticino, southern Switzerland.
France's Women's Rights Minister has caused controversy with her views on the Islamic veil.
The government of Egyptian President Abdel-Fattah el-Sissi is increasingly concerned with how women dress.