Answer:
Prejudice is a preconception or preconceived opinion not based on truth. It means conceiving on the basis of race, group or any particular characteristics. Hazrat Muhammad (SAW) said: "Avoid prejudice, as it begins with ignorance and ends up in regression.” So, Avoiding prejudice is part of Sunnah. "Hazrat Ali (AS) states that one of the main reasons for prejudice is “ignorance”. He explains that “As for Satan, he felt proud over Adam because of his origin and taunted him about his creation since he said, "I am of fire while you are of clay." " A part of Islam is not judging people on the basis of their race, group or characteristics. Even, Hazrat Muhammad (SAW) said in his last Khutbah that don't judge people on the basis of their race. So, being noble is really better than judging someone on the basis of their race or something. For Obeying Allah, we need to be noble irrespective of caste,color, creed or language.