Abdullah bin Wahb عبد الله بن وهب بن مسلم القرشي · The Book of Jihad

"Allah will never combine the dust in the cause of Allah, the Mighty and Sublime, and the smoke of Hell, in the lungs of a Muslim man, and Allah will never combine faith in Allah, and stinginess in the heart of a Muslim man."

"I heard the Messenger of Allah (ﷺ) say: 'There is no raiding party that goes out in the cause of Allah and acquires some spoils of war, but they have been given two-thirds of their reward in this world instead of in the Hereafter, and there remains one-third (in the Hereafter). And if they do not acquire any spoils of war, then all of their reward (will come in the Hereafter).'"

"I heard the Messenger of Allah (ﷺ) say: 'The parable of a Mujahid who strives in the cause of Allah - and Allah knows best who in His cause - is that of one who fasts, prays Qiyam, focuses with proper humility, bows and prostrates.'"

"I heard the Messenger of Allah (ﷺ) say: 'Whoever shoots an arrow in the cause of Allah and it hits the target, it will raise him one level in Paradise.' That day I shot sixteen arrows that hit their targets." He said: "And I heard the Messenger of Allah (ﷺ) say: 'Whoever shoots an arrow in the cause of Allah, it is equal to the reward of freeing a slave.'"

"O Ka'b! Tell us a Hadith from the Messenger of Allah (ﷺ) and be careful." He said: "I heard him say: 'Whoever develops one gray hair in Islam, in the cause of Allah, it will be light for him on the Day of Resurrection.'" He said to him: "Tell us about the Prophet (ﷺ) and be careful." He said: "I heard him say: 'Shoot, and whoever hits the enemy with an arrow, Allah will raise him one degree in status…

"A man came to the Messenger of Allah (ﷺ) and said: 'O Messenger of Allah, if I am killed in the cause of Allah with patience and seeking reward, facing the enemy and not running away, do you think that Allah will forgive my sins?' The Messenger of Allah (ﷺ) said: 'Yes.' When the man turned away, the Messenger of Allah (ﷺ) called him back and said: 'What did you say?' He repeated his question, and the Messenger of Allah…

"O Messenger of Allah, if I am killed in the cause of Allah, will Allah forgive my sins?" The Messenger of Allah (ﷺ) said: "Yes, if you are killed in the cause of Allah, and you are patient and seek reward, and you are facing the enemy, not running way - except for debt. Jibril (peace be upon him) told me that."

"The martyr does not feel the pain of being killed, except as any one of you feels a pinch."

"The Messenger of Allah (ﷺ) promised that we would invade India. If I live to see that I will sacrifice myself and my wealth. If I am killed, I will be one of the best of the martyrs, and if I come back, I will be Abu Hurairah Al-Muharrar."