Zayd bin Salam زيد بن سلام · Jihad (Kitab Al-Jihad)

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.

Ata' reported a similar tradition (to No 2777) from the Prophet (ﷺ). This version adds: a man is appointed on groups of people, and takes (wages) from the share of this, and from the share of this.