Narrated Abu Hurairah:
That the Messenger of Allah (ﷺ) said: There are three for whom it is a right upon Allah to help him: The Mujahid in the cause of Allah, the Mukatab who intends to fulfill (the Kitabah), and the one getting married who intends chastity.
[Abu 'Eisa said:] This Hadith is Hasan.