Uthman bin Abi al-Atk'h عثمان بن أبي العاتكة سليمان الأزدي · The Book of the Sunnah

"The first people to declare their Islam publicly were seven: The Messenger of Allah, Abu Bakr, 'Ammar and his mother Sumayyah, Suhaib, Bilal and Miqdad. With regard to the Messenger of Allah, Allah protected him through his paternal uncle Abu Talib. With regard to Abu Bakr, Allah protected him through his people. As for the rest, the idolators seized them and made them wear coats of chain-mail and exposed them to the intense heat of the sun. There was none…