You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Gamal_Abdel_Nasser

Context:
Gamal Abdel Nasser was born on 15 January 1918 in Bakos, Alexandria, the first son of Fahima and Abdel Nasser Hussein. Nasser's father was a postal worker born in Beni Mur in Upper Egypt and raised in Alexandria, and his mother's family came from Mallawi, el-Minya. His parents married in 1917, and later had two more boys, Izz al-Arab and al-Leithi. Nasser's biographers Robert Stephens and Said Aburish wrote that Nasser's family believed strongly in the "Arab notion of glory", since the name of Nasser's brother, Izz al-Arab, translates to "Glory of the Arabs"—a rare name in Egypt.

Question:
What was Nasser's father's occupation?

postal worker