He stated this on Sunday in Abuja after a 10-day private visit to London.
Buhari stated that he did not discuss the issue of the appointment of new cabinet ministers with anybody.
The president said: “I didn’t discuss with anybody. So, I don’t know how they knew about it. I didn’t discuss it with anybody.’’
On the possibility of introducing a fresh approach in the fight against insurgency and banditry, the president acknowledged that the acting Inspector-General of Police was doing his best to curtail the menace.
“I have just seen the IG, I think he is losing weight; I think he is working very hard,’’ he said.
The president also declined comment on the kind of people that would constitute his next cabinet.