Standard of Faith & Protection From Satan
Hazrat Amr bin Sharhabeel narrates that the Holy Prophet (sa) said that faith was running through the veins of Ammar bin Yasir (ra). This means that he was completely immersed in faith.
(Sunan Al-Nisai, Kitab-ul-Imaan, Hadith 5010)
Hazrat Ammar bin Yasir (ra) is counted among those whom God Almighty had safeguarded against Satan.
Ibrahim relates from Alaqamah that he said, “I went to Syria and the people there said that Hazrat Abu Dardaa (ra) used to say, ‘Was that person from amongst you whom God Almighty had protected against Satan, as mentioned by the Holy Prophet (sa) himself?’” (He said this in reference to Hazrat Ammar (ra).)
(Sahih Al-Bukhari, Kitabu Badil Khalq, Hadith 3287)