In whatever state you fight or are killed, Allah will resurrect you in that state

It is narrated from Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) that he said: O Messenger of Allah, tell me about jihad and military expeditions. He (peace and blessings be upon him) said: "O Abdullah bin Amr, if you fight with patience and seeking reward, Allah will raise you (on the Day of Resurrection) as one who was patient and sought reward; and if you fight for show and pride, Allah will raise you as one who showed off and took pride. O Abdullah bin Amr, in whatever state you fight or are killed, Allah will raise you in that same state."
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it. This Muhammad bin Abi al-Waddah is Abu Sa'id Muhammad bin Muslim bin Abi al-Waddah, a trustworthy (thiqah) and reliable (ma'mun) narrator.

It is narrated from Sayyiduna Uqbah bin Amir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "May Allah Almighty have mercy on the one who guards the guards."
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs (Bukhari and Muslim) did not record it.