SHAFAQNA – A few of the companions of the Prophet of Islam (PBUH) were discussing about superiority of their races and families. They asked Salman Farsi (RA): Tell us, who are you? Who is your father, and what is your origin and ancestry? Salman (RA) replied: I am Salman, the son of a servant of God, who was misled, and God through the blessed existence of the Prophet of Allah (SWT) guided me. I was helpless, and God with the help of the Prophet (PBUH) made me capable. I was a slave and for the sake of the blessed Prophet (PBUH), God freed me. This has been my lineage, and personal identity. Then the Prophet of Islam (PBUH) said: O’ people of Quraysh; the race of a person is his/her religion, is his/her fairness, is his/her morality, and its root is his/her wisdom. Allah (SWT) said in the holy Quran : “O’ mankind; God created you from a man and a woman, and made you into nations and tribes, that you may know each other. Verily, the most honoured of you in the sight of Allah (SWT) is the most pious among you.” 
 Ayah 13, Surah Al-Hujurat
 Salman Farsi (RA), Seyyed Jaafar Mortaza Ameli, Page 85.