(1)If at any time there should not be a quorum of the Judges of the Supreme Court available to hold or continue any session of the Court, the National Judicial Appointments Commission on a reference made to it by the Chief Justice of India, may with the previous consent of the President and after consultation with the Chief Justice of the High Court concerned, request in writing the attendance at the sittings of the Court, as an ad hoc Judge, for such period as may be necessary, of a Judge of a High Court duly qualified for appointment as a Judge of the Supreme Court to be designated by the Chief Justice of India.