When the Prophet ﷺ proceeded for the Battle of Badr, I said to him: Messenger of Allah allow me to accompany you in the battle. I shall act as a nurse for patients. It is possible that Allah might bestow martyrdom upon me. He said: Stay at your home. Allah, the Almighty , will bestow martyrdom upon you. The narrator said: Hence she was called martyr. She read the Qur'an. She sought permission from the Prophet ﷺ to have a mu'adhdhin in her house. He, therefore, permitted her (to do so). She announced that her slave and slave-girl would be free after her death. One night they went to her and strangled her with a sheet of cloth until she died, and they ran away. Next day Umar announced among the people, "Anyone who has knowledge about them, or has seen them, should bring them (to him)." Umar (after their arrest) ordered (to crucify them) and they were crucified. This was the first crucifixion at Medina.  

أَنَّ النَّبِيَّ ﷺ لَمَّا غَزَا بَدْرًا قَالَتْ قُلْتُ لَهُ يَا رَسُولَ اللَّهِ ائْذَنْ لِي فِي الْغَزْوِ مَعَكَ أُمَرِّضُ مَرْضَاكُمْ لَعَلَّ اللَّهَ أَنْ يَرْزُقَنِي شَهَادَةً قَالَ قِرِّي فِي بَيْتِكِ فَإِنَّ اللَّهَ تَعَالَى يَرْزُقُكِ الشَّهَادَةَ قَالَ فَكَانَتْ تُسَمَّى الشَّهِيدَةَ قَالَ وَكَانَتْ قَدْ قَرَأَتِ الْقُرْآنَ فَاسْتَأْذَنَتِ النَّبِيَّ ﷺ أَنْ تَتَّخِذَ فِي دَارِهَا مُؤَذِّنًا فَأَذِنَ لَهَا قَالَ وَكَانَتْ دَبَّرَتْ غُلاَمًا لَهَا وَجَارِيَةً فَقَامَا إِلَيْهَا بِاللَّيْلِ فَغَمَّاهَا بِقَطِيفَةٍ لَهَا حَتَّى مَاتَتْ وَذَهَبَا فَأَصْبَحَ عُمَرُ فَقَامَ فِي النَّاسِ فَقَالَ مَنْ كَانَ عِنْدَهُ مِنْ هَذَيْنِ عِلْمٌ أَوْ مَنْ رَآهُمَا فَلْيَجِئْ بِهِمَا فَأَمَرَ بِهِمَا فَصُلِبَا فَكَانَا أَوَّلَ مَصْلُوبٍ بِالْمَدِينَةِ