President Muhammadu Buhari has attended Friday Muslim prayers at the Mosque inside the presidential villa.
The president, who has been ill, had not been seen in public for weeks, fuelling speculations about his health.
Mr. Buhari also missed cabinet meetings for three consecutive weeks, but his wife, Aisha, said his health was not as bad as “perceived”.
The president has not disclosed the nature of his ailment.
On Friday, Mr. Buhari arrived the Mosque at 1:28 p.m., escorted by a retinue of aides.
Dressed in all white attire, he walked briskly from his official residence to the mosque and back, covering about 600 metres.