Mentioning the beginning of faith, how it was, and the refutation of the Murji'ah; because the obligatory duties (fara'id) were revealed after the declaration of 'La ilaha illa Allah' (there is no god but Allah).
ذِكْرُ بَدْءِ الْإِيمَانِ كَيْفَ كَانَ وَالرَّدُ عَلَى الْمُرْجِئَةِ؛ لِأَنَّهُ نَزَلَتِ الْفَرَائِضُ بَعْدَ قَوْلِ لَا إِلَهَ إِلَّا اللَّهُ
