Masturbation is Haram in Islam in the Light of Quran and Hadith

Because I am jobless at the age of 28 and I am unmarried, my parents don't think I am ready for marriage. Sometimes I see a girl who just crossed in front of me, or just passes beside me and she is beautiful. After seeing her, I feel as if I could have sex with her. When these thoughts occur, I become erect and I want to fulfill my lust. I know it can't be possible because it is Haram in Islam to do Zina, at the same time it is also a bitter truth that I want to satisfy myself. In order to not go towards Zina, I try to satisfy myself with masturbation. In that condition is it Haram?