Abu Malik heard the Messenger of Allah (ﷺ) say: He who goes forth in Allah's path and dies or is killed is a martyr, or has his neck broken through being thrown by his horse or by his camel, or is stung by a poisonous creature, or dies on his bed by any kind of death Allah wishes is a martyr and will go to Paradise.
Reference: Sunan Abi Dawud 2499 In-book : Book 15, Hadith 23 English translation : Book 14, Hadith 2493
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