"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 of them who did not do what they wanted them to do, except for Bilal. He did not care what happened to him for the sake of Allah, and his people did not care what happened to him. Then they gave him to the children who took him around in the streets of Makkah while he was saying, 'Ahad, Ahad (One, One).'"

A’isha (RA) reported that whenever the Prophet ﷺ became sick, he would recite the Mu’awwidhāt (Sūrat Al-Falaq and Sūrat An-Nās) and then blow his breath over his body. When he became seriously ill, I used to recite (these two suwar) and rub his hands over his body hoping for its blessings. Reference: Sahih al-Bukhari 5016.

Rib'i ibn Hirash reported that a man of the Banu 'Amir came to the Prophet, may Allah bless him and grant him peace, and said, "Can I come in?" The Prophet, may Allah bless him and grant him peace, told his slavegirl, "Go out and say to him,, 'Say, "Peace be upon you. Can I come in?" He is not good at asking permission to enter." The man said, "I heard that before the slavegirl came out to me and I said, 'Peace be upon you. Can I come in?' Then the Prophet said, 'And on you. Enter!'"