It is narrated from Sayyiduna Abu Ayyub Khalid bin Zayd (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Whoever meets the enemy and stands firm until he is martyred or prevails, he will not be put to trial in his grave."
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith is narrated from Abu Hurayrah (may Allah be pleased with him), from Abu Ayyub (may Allah be pleased with him), only with this chain, and Munabbih bin Uthman is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب العين / 4118
Hadith Takhrij«أخرجه الحاكم فى «المستدرك» برقم: 2571، وابن حجر فى «المطالب العالية» برقم: 1932، والطبراني فى «الكبير» برقم: 4094، والطبراني فى «الأوسط» برقم: 8243»