An obligation is a legal requirement to give, do, or not do something. Obligations can arise from laws, contracts between parties, quasi-contracts where one party confers a benefit on another, unlawful acts or omissions, and quasi-delicts which are unintentional wrongs.

1. A.OBLIGATION
AS A CONCEPT

3. ARTICLE 1156
An obligation is a juridical
necessity to give, to do or
not to do.

6. ARTICLE 1157
Obligations arise from:
(1) Law;
(2) Contracts;
(3) Quasi-contracts;
(4) Acts or omissions punished by law; and
(5) Quasi-delicts.