In the telephone conversation with Mrs Attahiru, the president hailed the sacrifices of the military men who lost their lives and the Armed Forces in general.
He said Nigerians would continue to “appreciate and support the fearlessness with which our courageous soldiers are confronting the threats facing the nation”.
He described Attahiru as an outstanding soldier and an institution builder who fought valiantly for Nigeria until he breathed his last, the News Agency of Nigeria reports.
The president gave the grieving families assurance that the nation would never forget the supreme sacrifice of their spouses.
He urged them to take solace in the surge of extraordinary feelings of emotions across regions, religions and tribes all over the country in appreciation of their sacrifices.
The president had earlier given directives to the Defence Headquarters and the Ministry of Defence to do everything a government could do to provide comfort and ease the hardship of the families of the deceased.
He prayed to almighty God to repose their souls and grant their families the fortitude to bear the losses. Mrs Attahiru, on behalf of the rest of the families, thanked the president for the love and care he has shown to them.
The late Attahiru and 10 other officers died in a plane crash in Kaduna on Friday evening. President Buhari and Vice President Yemi Osinbajo did not attend the burial.