Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai:2054 – ʿUbaydullāh b. Saʿīd > Yaḥyá > al-Taymī > Abū ʿUthmān > ʿĀmir b. Mālik > Ṣafwān b. Umayyah > al-Ṭāʿūn And al-Mabṭūn Wa-al-Gharīq Wa-al-Nnufasāʾ Shahādah

"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.  

النسائي:٢٠٥٤ – أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا يَحْيَى عَنِ التَّيْمِيِّ عَنْ أَبِي عُثْمَانَ عَنْ عَامِرِ بْنِ مَالِكٍ عَنْ صَفْوَانَ بْنِ أُمَيَّةَ قَالَ

الطَّاعُونُ وَالْمَبْطُونُ وَالْغَرِيقُ وَالنُّفَسَاءُ شَهَادَةٌ قَالَ وَحَدَّثَنَا أَبُو عُثْمَانَ مِرَارًا وَرَفَعَهُ مَرَّةً إِلَى النَّبِيِّ ﷺ  

See similar narrations below:

Collected by Nasāʾī's Kubrá
nasai-kubra:2192 – ʿUbaydullāh b. Saʿīd > Yaḥyá > al-Taymī > Abū ʿUthmān > ʿĀmir b. Mālik > Ṣafwān b. Umayyah > al-Ṭāʿūn And al-Baṭn Wa-al-Gharaq Wa-al-Nnufasāʾ Shahādah

[Machine] Narrated Abu Uthman repeatedly and raised it once to the Prophet ﷺ .  

الكبرى للنسائي:٢١٩٢ – أَخْبَرَنَا عُبَيْدُ اللهِ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا يَحْيَى عَنِ التَّيْمِيِّ عَنْ أَبِي عُثْمَانَ عَنْ عَامِرِ بْنِ مَالِكٍ عَنْ صَفْوَانَ بْنِ أُمَيَّةَ قَالَ «§الطَّاعُونُ وَالْبَطْنُ وَالْغَرَقُ وَالنُّفَسَاءُ شَهَادَةٌ» قَالَ

حَدَّثَنَا أَبُو عُثْمَانَ مِرَارًا وَرَفَعَهُ مَرَّةً إِلَى النَّبِيِّ ﷺ