you can but only up to the point he gave it to naruto but it need 10 years recharge so he couldn't have used it during the time frame of the series
my only problem with ka is it needs 10 years recharge so how the hell can hashi dna cut it down to like a day recharge the only way this can justify to me is if the ka with hashi dna isnt as powerful then the 10 year recharge and thats only wishful thinking on my part i want kishi to explain why hashi dna is so god damn op im actually surprised the leaf haven't tried using it more lol they must not have known as if it was me id have burned his body getting rid of all dna or use it and have the greatest security for it