The young Abiola said this via his Twitter handle @AbdulMKO on Tuesday.
He said that it was time for Nigerians to know the truth as to the circumstances that led to the death of his father, adding that the president should look into the archives.
“I urge President Muhammadu Buhari to look into our country archives for justice to prevail,” he said.
Late Abiola was the presumed winner of the June 12, 1993 presidential elections but his election was annulled by the then head of state, Gen. Ibrahim Babangida.
Abiola, however, declared himself as the president in what was called Epetedo declaration, but was subsequently arrested by the government of late Gen. Sani Abacha, the then head of state.
Buhari also declared June 12 as Democracy Day against May 29 which was the day it was being celebrated before.