Is there an authentic Hadith from the Prophet, may Allah bless him and grant him peace, to the effect of: "Three are rightfully aided by Allah: the one who strives in the way of Allah, the one who marries seeking chastity, and the Mukaatab who desires to pay off his freedom"?

The narration, "Three are rightfully aided by Allah: the one who strives in the way of Allah, the indentured servant (mukātab) who desires to pay his freedom, and the one who marries desiring chastity," is a ḥasan (good) hadith. The most difficult of these matters is chastity, as it involves suppressing an inherent carnal desire. However, with Allah's assistance, a person can ascend. Marriage is among the matters that bring sustenance and dispel poverty.