Hello my name is ***** ***** I will help you with this.
Could you please explain your situation a little more?
If you are saying you handed him over to rescue then he cannot be recovered unless you agreed a cooling off period which would be rare save for exceptional circumstances as rescues usually demand certainty.
If you handed him over to a third party then you would only be able to recover if you agreed a specific cooling off period.
in short though, unless you agreed a specific cooling off period none will automatically exist in law.
Can I clarify anything for you?