Yonus bin Abi Ishaq يونس بن أبي إسحاق · The Book on Virtues of Jihad

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." This Hadith is Hasan.

That the Prophet (ﷺ) said: "Whoever fought in the cause of Allah - a Muslim man - for the time it takes for two milkings of a camel, then Paradise is obligatory for him. And whoever suffered a wound in the cause of Allah, or he suffers from an injury, then he will come on the Day of Resurrection while (his blood will be) more copius that it ever was, its color the color of saffron, and its scent like…