Соответствующая норма
Oman
Practice Relating to Rule 131. Treatment of Displaced Persons
Section A. Provision of basic necessities
In May 1994, during a debate on Rwanda in the UN Security Council, Oman stated that the most urgent measure in response to mass displacement was to immediately extend humanitarian assistance to IDPs. 
Oman, Statement before the UN Security Council, UN Doc. S/PV.3377, 16 May 1994, p. 7.