Faisal–Weizmann agreement

The Faisal–Weizmann agreement was signed by Emir Faisal, the third son of Hussein ibn Ali al-Hashimi, King of the short-lived Kingdom of Hejaz, and Chaim Weizmann, President of the Zionist Organization on 3 January 1919. Signed two weeks before the start of the Paris Peace Conference, it was presented by the Zionist delegation alongside a March 1919 letter written by T. E. Lawrence in Faisal's name to American Zionist leader Felix Frankfurter as two documents to argue that the Zionist plans for Palestine had prior approval of Arabs.

Source: Wikipedia — Faisal–Weizmann agreement (CC BY-SA 4.0)