´It was narrated from Kathir bin Murrah that the Messenger of Allah (ﷺ) said:` "There is no soul on Earth that dies, and is in a good position before Allah, that would like to come back to you, even if it had all this world, except the one who is killed (in the cause of Allah); he wishes that he could come back and be killed again."
Hadith Referenceسنن نسائي / كتاب الجهاد / 3161
Hadith Gradingالألبانی:حسن صحيح | زبیر علی زئی:إسناده حسن
Hadith Takhrij«تفرد بہ النسائي، (تحفة الأشراف: 5108)، وقد أخرجہ: صحیح مسلم/في الإمارة 29 (1877) مسند احمد (5/318، 322) (حسن صحیح)»
Brief Explanation
1؎: So that the honor, rank, and elevated status he attained due to his martyrdom may increase and be elevated even further through his martyrdom once again.