(16) باب فِي فَضْلِ الرِّبَاطِ
Narrated Fadalah ibn Ubayd:
The Prophet (ﷺ) said: Everyone who dies will have fully complete his action, except one who is on the frontier (in Allah's path), for his deeds will be made to go on increasing till the Day of Resurrection, and he will be safe from the trial in the grave.
Reference: Sunan Abi Dawud 2500
In-book reference: Book 15, Hadith 24
English translation: Book 14, Hadith 2494