عَنْ عَبْدِ اللَّهِ رَضِيَ اللَّهُ عَنْهُ قَالَ أَوَّلُ مَنْ أَظْهَرَ إِسْلَامَهُ سَبْعَةٌ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ وَأَبُو بَكْرٍ رَضِيَ اللَّهُ عَنْهُ وَعَمَّارُ بْنُ يَاسِرٍ رَضِيَ اللَّهُ عَنْهُ وَأُمُّهُ سُمَيَّةُ رَضِيَ اللَّهُ عَنْهَا وَصُهَيْبٌ رَضِيَ اللَّهُ عَنْهُ وَبِلَالٌ رَضِيَ اللَّهُ عَنْهُ وَالْمِقْدَادُ رَضِيَ اللَّهُ عَنْهُ فَأَمَّا رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ فَمَنَعَهُ اللَّهُ بِعَمِّهِ أَبِي طَالِبٍ وَأَمَّا أَبُو بَكْرٍ فَمَنَعَهُ اللَّهُ بِقَوْمِهِ وَأَمَّا سَائِرُهُمْ فَأَخَذَهُمُ الْمُشْرِكُونَ فَأَلْبَسُوهُمْ أَدْرَاعَ الْحَدِيدِ وَصَهَرُوهُمْ فِي الشَّمْسِ فَمَا مِنْهُمْ إِنْسَانٌ إِلَّا وَقَدْ وَاتَاهُمْ عَلَى مَا أَرَادُوا إِلَّا بِلَالٌ فَإِنَّهُ هَانَتْ عَلَيْهِ نَفْسُهُ فِي اللَّهِ وَهَانَ عَلَى قَوْمِهِ فَأَعْطَوْهُ الْوِلْدَانَ وَأَخَذُوا يَطُوفُونَ بِهِ شِعَابَ مَكَّةَ وَهُوَ يَقُولُ أَحَدٌ أَحَدٌ
It is narrated from Sayyiduna Abdullah bin Mas’ud, may Allah be pleased with him, he says: The first seven individuals to openly declare Islam were: the Messenger of Allah, peace and blessings be upon him, Sayyiduna Abu Bakr, Sayyiduna Ammar bin Yasir, his mother Sayyidah Sumayyah, Sayyiduna Suhaib, Sayyiduna Bilal, and Sayyiduna Miqdad. Allah Almighty granted protection to the Messenger of Allah, peace and blessings be upon him, through his uncle Abu Talib, and to Sayyiduna Abu Bakr, may Allah be pleased with him, through his people. The rest of them were seized by the polytheists, who made them wear iron armor and tortured them by standing them in the sun. Every person would comply with their wishes, except for Sayyiduna Bilal, may Allah be pleased with him. He considered himself insignificant for the sake of Allah Almighty. Meanwhile, his people also considered him of little importance, so they handed him over to the children, or they would take Sayyiduna Bilal, may Allah be pleased with him, and make him wander through the valleys of Makkah, but Sayyiduna Bilal would keep saying: Allah is One, Allah is One.