There's a couple of versions of this in the existing Twelve Treasures books, the first line is different depending on the oath:
My company until you've got him back for your promise after you do
Silver and Gold to seal it, air and earth to know it.
Both accompanied by the gift of a gold and silver ring from the one speaking to the other participant. The above oath is also released at the end of The Cloak of Night and Daggers.
I take back what I gave and give back what I took
Silver and Gold unbind it, air and earth forget it
--
Uncle Ed's Rule of Thumb:
Never use your thumb for a rule. You'll either hit it with a
hammer or get a splinter in it.
My company until you've got him back for your promise after you do
Silver and Gold to seal it, air and earth to know it.
Both accompanied by the gift of a gold and silver ring from the one speaking to the other participant. The above oath is also released at the end of The Cloak of Night and Daggers.
I take back what I gave and give back what I took
Silver and Gold unbind it, air and earth forget it
--
Uncle Ed's Rule of Thumb:
Never use your thumb for a rule. You'll either hit it with a
hammer or get a splinter in it.