The parties pledged to ensure a free, fair and violence-free poll.
Mr Abubakar polled 30,650 votes to defeat his closest rival, Mr Nmaa Ahmed, who secured 1,271 votes.
Former military head of state, Abdulsalami Abubakar, has felicitated Muslims in Nigeria and worldwide on the occasion of Ramadan.
He stressed the need for robust synergy among security agencies, government and the public.
Mr Amupitan urged the candidates to ensure that the message of non-violence and mutual respect cascades to their supporters at all levels.
Mr Abubakar prayed for Mr Gowon’s continued good health, strength and wisdom.
Mr Daura said the support from President Bola Tinubu and his wife, Remi, comforted the family.
“The late president was deeply admired across all strata of society for his decency, integrity, and exemplary life of service,” said Mr Jonathan.
“It is the question that every judge should ask himself at the conclusion of every case: ‘Have I judged with justice in this case?’” said Mr Abubakar.
The president will meet ex-military dictator Ibrahim Babangida in Niger.
