Osinbajo, who is currently in Katsina State, said he feels at home in President Buhari's home state.
Osinbajo's spokesman, Laolu Akande, quoted him as saying this on Thursday, May 11, in Katsina state.
The Acting President is in the state, which is also Buhari's home state, for the launch of the micro small and medium enterprises (MSME) clinic.
Shortly after his arrival in the state, Osinbajo proceeded to the palace of the Emir of Katsina, Abdulmumini Usman.
"In fact, the president has taken me as a son in the way he treats me," Akande quoted Osinbajo as saying.
"I feel very much at home in Katsina. Moreso because this is the state of the president who has taken me as a brother.
"The amount of responsibilities President Buhari has given me shows he seriously believes we can live together as brothers.
"I pray the Lord will preserve our president to continue to lead as the nation has voted him to do. He seriously believes in Nigerian unity," the Acting President said.
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Osinbajo is discharging the duties of Buhari, who returned to London on Sunday, May 7, for further medical treatment.