Fadala b. ‘Ubaid reported God’s Messenger as saying, “Everyone who dies will have fully completed his actions, except one who is on the frontier in God’s path, for his deeds will be made to go on increasing for him till the day of resurrection, and he will be safe from the trial in the grave."
Tirmidhi and Abu Dawud transmitted it, and Darimi transmitted it on the authority of ‘Uqba b. ‘Amir.
Abu Huraira reported God’s Messenger as saying, “If you greet all and sundry, provide food, and strike the pates of enemies, you will be made heirs of paradise."
Tirmidhi transmitted it, saying this is a gharib tradition.
Mu'adh b. Jabal told of his hearing God’s Messenger say, “If anyone fights in God’s path as long as the time between two milkings of a she- camel* paradise will be assured for him; if anyone is wounded in God’s path or suffers a misfortune, it will come on the day of resurrection as copious as possible, its colour saffron and its odour musk; and if anyone suffers from ulcers while in God's path, he will have on him the stamp of the martyrs."
* This refers particularly to the practice of milking a camel, then leaving it for a little to suckle its young, after which it is milked again. The period between the two milkings therefore indicates a very short time.