´It was narrated from Rashid bin Sa'd, that a man among the Companions of the Prophet said:` "O Messenger of Allah, why will the believers be tested in their graves except the martyr?" He said: "The flashing of the swords above his head is trial enough."
Hadith Referenceسنن نسائي / كتاب الجنائز / 2055
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:إسناده صحيح
´It was narrated that Safwan bin Umayyah said:` "The plague, abdominal illness, drowning and dying in childbirth are martyrdom." (One of the narrators) said: Abu 'Uthman narrated this to us several times, and on one occasion he attributed it to the Prophet.
Hadith Referenceسنن نسائي / كتاب الجنائز / 2056
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح
Hadith Takhrij«تفرد بہ النسائي، (تحفة الأشراف: 4948) ، مسند احمد 3/400، 401 و 6/465، 466، سنن الدارمی/الجھاد 22 (صحیح)»