The Messenger of Allah ﷺ visited Saad bin Ubada when he was ill and asked, "Whom do you count as martyrs from my nation?"He repeated the question three times.We said, "Allah and His Messenger know best."Saad bin Ubada said, "If the Messenger of Allah ﷺ permits me, I will tell him who the martyrs from his nation are."The Prophet said, "Then tell me who the martyrs from my nation are."Saad said, "Prop me up." So they propped him up, and he said, "Whoever believes in Allah, strives in the path of Allah, and fights until he is killed is a martyr."The Messenger of Allah ﷺ said, "In that case, the martyrs of my nation would be few. The one killed in the path of Allah is a martyr, the one who dies of a stomach ailment is a martyr, the one who dies of plague is a martyr, the one who drowns is a martyr, and the woman who dies in childbirth is a martyr."
عاد رسول الله ﷺ سعد بن عبادة فقال: ما تعدون الشهداء من أمتي؟ قال: قال ذلك ثلاثا. قلنا: الله ورسوله أعلم. قال سعد بن عبادة: إن شاء رسول الله ﷺ أذن لي فأخبرته من الشهداء من أمته قال: فأخبرني من الشهداء من أمتي؟ قال: أسندوني فأسندوه فقال: من آمن بالله وجاهد في سبيل الله وقاتل حتى قتل فهو شهيد، قال: إن شهداء أمتي إذا لقليل، القتيل في سبيل الله شهيد، والمبطون شهيد، والمطعون شهيد، والغريق شهيد، والنفساء شهيد.
Tabarani narrated it in Musnad Shamiyin (1508), and from his route Diya narrated it in Mukhtarah (9/87), from Hashim bin Marthad Tabarani, who said, Abu Salih Farra narrated to us, who said, Abu Ishaq Fazari narrated to us, from Uzai, from Ala bin Harith, from Abdullah bin Busr, who said, and then he mentioned it.Its chain of transmission is hasan on account of Abu Salih Farra (who is Mahbub bin Musa), for he is hasan al-hadith as stated in Taqrib, and on account of Hashim bin Marthad Tabarani, the teacher of Tabarani, since the closer view of his case is that his hadith is graded hasan when it does not contradict other narrations and does not contain anything objectionable attributed to him. Khalili said in Irshad (2/484), Trustworthy, but he is a narrator of unusual reports. Haythami said in Majma (5/301), "Tabarani narrated it, and its narrators are the narrators of the Sahih except for Abu Salih Farra, who is trustworthy."However, Dhahabi transmitted in Mizan (4/290) from Ibn Hibban that he said about Hashim bin Marthad, He is nothing, though I did not find this in Majruhin. And Allah knows best.