Furqān (فرقان, الْفُرْقَانُ)
The Decisive Verses of the Holy Quran
معاني الأخبار أَبِي عَنْ أَحْمَدَ بْنِ إِدْرِيسَ عَنِ الْأَشْعَرِيِّ عَنْ إِبْرَاهِيمَ بْنِ هَاشِمٍ عَنِ ابْنِ سِنَانٍ وَ غَيْرِهِ عَمَّنْ ذَكَرَهُ قَالَ: سَأَلْتُ أَبَا عَبْدِ اللَّهِ ع عَنِ الْقُرْآنِ وَ الْفُرْقَانِ أَ هُمَا شَيْئَانِ أَمْ شَيْءٌ وَاحِدٌ
(The book) ‘Ma’any Al Akhbar’ – My father, from Ahmad Bin Idrees, from Al Ash’ary, from Ibrahim Bin Hashim, from Ibn Sinan and others, from the one who mentioned it, said,
‘I asked Abu Abdullah-asws about the Quran and the Furqan, ‘Are these two things or one thing?’
قَالَ فَقَالَ الْقُرْآنُ جُمْلَةُ الْكِتَابِ وَ الْفُرْقَانُ الْمُحْكَمُ الْوَاجِبُ الْعَمَلِ بِهِ
He (the narrator) said, ‘He-asws said: ‘The Quran is the whole Book, and ‘الْفُرْقَانُ’ the Furqan is the Decisive (Verses), the Obligatory to be working with’’.[1]
[1] Bihar Al-Anwaar V 89 – The Book of Quran – Ch 1 H 10