Abu Malik Ashari reported,

I heard the Messenger of Allah ﷺ say, "Whoever sets out in the path of Allah and then dies or is killed is a martyr. Whether his horse or camel throws him and breaks his neck, or a venomous creature stings him, or he dies in his bed, by whatever death Allah wills, he is indeed a martyr, and Paradise is his."

Azami 8124

Hasan

عن أبي مالك الأشعري قال

سمعت رسول الله ﷺ يقول: من فصل في سبيل الله فمات أو قتل فهو شهيد أو وقصه فرسه أو بعيره أو لدغته هامة أو مات على فراشه، بأى حتف شاء الله، فإنه شهيد، وإن له الجنة.

الأعظمي 8124حسن
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Jihad
Chapter
Martyrs and the rulings on martyrdom
Section
Martyrs other than those killed in the cause of Allah
Numbering
Jami al-Kamil 8124 (2nd edition)
Azami 8124