It is narrated from Sayyiduna Sa'd (may Allah be pleased with him) that he said: "I heard the Prophet (peace and blessings be upon him) saying: 'What an excellent death it is for a man to be killed (fighting) for the sake of his right.'"
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith was narrated from Ibrahim bin Muhajir only by Asbat bin Nasr, and Ali bin Thabit is alone in narrating it."
Hadith Referenceالمعجم الأوسط / باب الميم / 7914
Hadith Takhrij«أخرجه أحمد فى «مسنده» برقم: 1620، والطبراني فى «الأوسط» برقم: 9392»