Does Naruto teach rasengan to konohamaru?

Naruto taught Konohamaru the Rasengan. Naruto said: "It's time i passed things down onto others." Maybe because the Sarutobi is Wind-Natured and because Konohamaru is like a brother to Naruto. Also remembering Naruto promised to fight Konohamaru for the title of Hokage, Naruto wanted him to get stronger.