(1) باب مَا جَاءَ فِي فَضْلِ الْجِهَادِ
Narrated Anas bin Malik:
"The Messenger of Allah (ﷺ) said: meaning: Allah Mighty and Sublime is He says: 'The Mujahid in My cause, he has guarantee fro Me. If I I seize him, I cause him to inherit Paradise, and if I return him, I return him with a reward or spoils of war.'"[He said:] This Hadith is Gharib Sahih from this route.
Reference: Jami` at-Tirmidhi 1620
In-book reference: Book 22, Hadith 2
English translation: Vol. 3, Book 20, Hadith 1620