Be honest and truthful even during times of conflict.

This hadith speaks to the importance of being honest and truthful in times of war. It warns against using deceitful tactics to gain an advantage over one's enemies, as this goes against the teachings of the Prophet. The hadith also emphasizes that war should not be taken lightly, as it can have serious consequences for all involved. It is important to remember that even in times of conflict, honesty and truthfulness are still essential values that must be upheld.