Mustafa Ahmed Muhammad Uthman Abu al-Yazid (مصطفى أحمد محمد عثمان أبو اليزيد), better known as Saeed al-Masri (سعيد المصري) or simply al-Masri (المصري = the Egyptian), (December 17, 1955 – May 21, 2010) was an Egyptian who was alleged to have acted as the financial chief for al-Qaeda. Along with Mahfouz Ould al-Walid and Saif al-Adel, al-Masri was believed to have opposed the September 11 attacks two months prior to their execution. He was killed in a targeted killing drone airstrike in Pakistan on May 21, 2010.