The person who makes the declaration is the promisor. The person to whom the declaration is made iscalled the promisee.
https://saudijournals.com/media/articles/SIJLCJ_46_389-397.p...

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Note added at 28 mins (2023-06-21 16:13:32 GMT)
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The person to whom the declaration is made is called the promisee.
https://law.jrank.org/pages/9494/Promise.html

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Note added at 29 mins (2023-06-21 16:14:09 GMT)
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The person making declaration is the Promisor and the person to whom the declaration is made is called the Promisee.
https://lawcorner.in/contingent-contracts-and-its-scope-in-i...

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Note added at 31 mins (2023-06-21 16:15:50 GMT)
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Promisee
A person to whom a promise is made.
https://www.law.cornell.edu/wex/promisee