where can you learn to summon monkeys?

Konohamaru summons Enra and Hiruzen Sarutobi has Monkey King: Enma but where do they learn to summon them?

(Edited by Thunderwing5108)

You can learn to summon animals anywhere

(Edited by Squinty97)

Yes you can, if somebody else summons the animal and has you make a contract with them. Otherwise you need to find the animal to do so.

(Edited by BloodOfTheArchon)

You can learn to summon as long as you form a contract with that one scroll thing too.

The actual learning occurs anywhere though

(Edited by Squinty97)

I am assuming that the Sarutobi clan has the knowledge of how to contact & contract with the Monkeys.

(Edited by Umishiru)

(Edited by Thunderwing5108)

What do you think?