I fail to see how that is different from oral instructions.
It was in character that he referred to detailed oral instructions about all this.
Because of this, it cannot be determined how effective the ten years of oral instruction he received were.
Brown mentioned that the purpose of the commentary was to make the poems to be understood clearly without oral instructions.
I shall give oral instructions to the platoon commander at a later time.
Concerning military action, he gave oral instructions without leaving anything on paper.
The company secretary had simply passed on an oral instruction.
Children were given careful oral instruction in moral, religious and other matters.
To the courier he said, "You have oral instructions for me?"
This magic is passed down only by oral instruction.