Sufyan bin 'Uyaynah سفيان بن عيينة · The Book of Jihad

: “The Messenger of Allah said: ‘I have been sent with concise speech and I have been supported with fear. While I was sleeping, the keys to the treasures of the Earth were brought to me and placed in my hands.’” Abu Hurairah said: “The Messenger of Allah has gone and you are acquiring them.”

"The Messenger of Allah (ﷺ) said: 'The dust in the cause of Allah and the smoke of Hell will never be combined in a slave's lungs, and stinginess and faith can never be combined in a slave's heart.'"

"Whoever fights in the cause of Allah, the Mighty and Sublime, for the length of time between two milkings of a she-camel, Paradise is guaranteed for him. Whoever asks Allah to be killed (in Jihad) sincerely, from his heart, then he dies or is killed, he will have the reward of a martyr. Whoever is wounded or injured in the cause of Allah, it will come on the Day of Resurrection bleeding the most it ever bled, but its color…

"The Messenger of Allah (ﷺ) said: 'Wrap them up with their blood, for there is no wound incurred in the cause of Allah, but he will come on the Day of Resurrection bleeding with the color of blood, but its fragrance will be that of musk.'"

"I heard the Messenger of Allah (ﷺ) say: 'By the One in Whose hand is my soul, were it not that some men among the believers would not like to stay behind when I went out (to fight), and I could not find any mounts for them, I would not have stayed behind from any campaign that fought in the cause of Allah. By the One in Whose hand is my soul, I wish that I could be killed in…

"There is no soul on Earth that dies, and is in a good position before Allah, that would like to come back to you, even if it had all this world, except the one who is killed (in the cause of Allah); he wishes that he could come back and be killed again."