Others on the team include, the Speaker of the House of Representatives, Yakubu Dogara, Deputy Speaker, Lasun Yusuf and Senate Leader, Senator Ahmed Lawan.
The team left for London on Wednesday morning to meet with President Buhari who has extended his vacation indefinitely to attend to his health.
A source at the National Assembly confirmed this to Channels Television.
The President had on February 5, 2017 written to the National Assembly informing of his desire to extend his leave in order to complete and receive the results of a series of tests recommended by his doctors.
This was according to a statement by the Special Adviser to the President on Media and Publicity, Mr Femi Adesina.
“The President had planned to return to Abuja this (Sunday) evening, but was advised to complete the test cycle before returning.
“The notice has since been dispatched to the Senate President, and Speaker, House of Representatives.
“Mr. President expresses his sincere gratitude to Nigerians for their concern, prayers and kind wishes,” Adesina stated.
President Muhammadu Buhari embarked on a 10-day vacation on Monday January 23 and was billed to return to work on Monday February 6, 2017.
Vice President, Yemi Osinbajo has since been performing his duties as Acting President.