This thesis is a study of the doctrine of maqamat (stations) and ahwal (states), the crucial doctrine of sufism, as described in two different books, al-Risalah al-Qushayriyah and Kashf al-Mahjub, by two different masters of Sufism: one Sunni-Shafi'i, al-Qushayri, the other Sunni-Hanafi, al-Hujwiri. After introducing their positions in the history of sufism, the thesis examines their backgrounds as well as their mystical inclinations. The thesis then analyzes al-Qushayri's and al-Hujwiri's doctrine of maqamat and ahwal through a comparison of concrete examples found in the two books. Through this comparison, the thesis attempts to show the differences and the similarities of their concepts of maqamat and ahwal. The conclusion discovers that the differences which appear in al-Qushayri's and al-Hujwiri's views concerning identification of a virtue as a state or a station pertain to theoretical differences only.