Sunan an-Nasa'i 3194
It was narrated from 'Abdullah bin 'Abdullah bin Jabr, from his father, that the Messenger of Allah (ﷺ) visited Jabr (when he was sick). When he entered he heard the women crying and saying:
"We thought that your death would come when fighting in the cause of Allah." He said: "You think that martyrdom only comes when one is killed in the cause of Allah. In that case your martyrs would be few. Being killed in the  cause of Allah is martyrdom, dying of an abdominal complaint is martyrdom, being burned to death is martyrdom, drowning is martyrdom, being crushed beneath a falling wall is martyrdom, dying of pleurisy is martyrdom, and the woman who dies along with her fetus is a martyr." A man said: "Are you weeping when the Messenger of Allah (ﷺ) is sitting here?" He said: "Let them be, but if he dies on one should weep for him."
أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنَا جَعْفَرُ بْنُ عَوْنٍ، عَنْ أَبِي عُمَيْسٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَبْدِ اللَّهِ بْنِ جَبْرٍ، عَنْ أَبِيهِ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم عَادَ جَبْرًا فَلَمَّا دَخَلَ سَمِعَ النِّسَاءَ يَبْكِينَ وَيَقُلْنَ كُنَّا نَحْسُبُ وَفَاتَكَ قَتْلاً فِي سَبِيلِ اللَّهِ ‏.‏ فَقَالَ ‏"‏ وَمَا تَعُدُّونَ الشَّهَادَةَ إِلاَّ مَنْ قُتِلَ فِي سَبِيلِ اللَّهِ إِنَّ شُهَدَاءَكُمْ إِذًا لَقَلِيلٌ الْقَتْلُ فِي سَبِيلِ اللَّهِ شَهَادَةٌ وَالْبَطْنُ شَهَادَةٌ وَالْحَرَقُ شَهَادَةٌ وَالْغَرَقُ شَهَادَةٌ وَالْمَغْمُومُ - يَعْنِي الْهَدِمَ - شَهَادَةٌ وَالْمَجْنُوبُ شَهَادَةٌ وَالْمَرْأَةُ تَمُوتُ بِجُمْعٍ شَهِيدَةٌ ‏"‏ ‏.‏ قَالَ رَجُلٌ أَتَبْكِينَ وَرَسُولُ اللَّهِ صلى الله عليه وسلم قَاعِدٌ قَالَ ‏"‏ دَعْهُنَّ فَإِذَا وَجَبَ فَلاَ تَبْكِيَنَّ عَلَيْهِ بَاكِيَةٌ ‏"‏ ‏.‏