´It was narrated from ‘Abdullah bin ‘Abdullah bin Jabir bin ‘Atik, from his father, that his grandfather fell sick and the Prophet (ﷺ) came to visit him. One of his family members said:` “We hoped that when he died it would be as a martyr in the cause of Allah.” The Messenger of Allah (ﷺ) said: “In that case the martyrs of my nation would be few. Being killed in the cause of Allah is martyrdom; dying of the plague is martyrdom; when a pregnant woman dies in childbirth that is martyrdom; and dying of drowning, or burning, or of pleurisy, is martyrdom.”
Hadith Referenceسنن ابن ماجه / كتاب الجهاد / 2803
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:إسناده حسن
1؎ : The meaning is that all of these will receive the reward and rank of martyrs (shuhada), even though their rulings are not the same as those of a martyr; therefore, they will be given ritual bath (ghusl), and their funeral prayer (salat al-janazah) will be performed. Despite this, the greatest martyr is still the one who is killed in the path of Allah, that is, in jihad.