(سورة الفرقان ) (The Criterion, The Standard) is the 25th sura of the Qur'an
with 77 ayat
The name "The Criterion" refers to the Qur'an itself as the decisive factor between the Good and the Evil. The meaning of this word is to distinguish between good and bad.
One source claims this verse is regarding Uqbah ibn Mu'ayt
and Ubay ibn Khalaf