President Buhari left the shores of the country since May 7th to London on Medical Vacation.
There has been a "tremendous improvement" in his health, he said.
The President's absence from the country has generated controversy and his comments come the same week that protesters took to the streets demanding that he resumes or resign.
Nigeria's president says he feels healthy enough to return home from medical leave in Britain, and is awaiting his doctor's permission.
The health of Nigeria's leaders has been a sensitive issue since the death in office of president Umaru Musa Yar'Adua in 2010 after months of treatment overseas. "Here, the doctor is absolutely in charge", he said in the statement.
In company of the Lai Mohammed-led team were Mr Femi Adesina, Special Adviser on Media and Publicity; Mallam Garba Shehu, Senior Special Assistant on Media and Publicity, and Lauretta Onochie, Personal Assistant on Digital/Online Media. Abike Dabiri-Erewa, Senior Special Assistant on Diaspora Matters also went with members of the team.
Secretary General of the group, Ambassador I.A. Waiya, in a statement made available to LEADERSHIP Sunday yesterday, noted that calls by some mischievous groups seeking for President Buhari's resignation prompted the solidarity walk billed for Monday. "I've now learnt to obey orders, rather than be obeyed".
Nigerian President Muhammadu Buhari, who has been in London for treatment of an undisclosed illness for more than three months, has assured a government delegation that he is doing fine.
Photos released by the presidency show Buhari standing outdoors, grinning and wearing sunglasses while holding a large "Get well soon" card, with a handful of officials around him in a leafy, residential area. It gave us a lot of latitude.