باب مَا جَاءَ فِي فَاتِحَةِ الْكِتَابِ
It is also called Umm-ul-Kitab (i.e., the Mother of the Book), because it is the first Surah that has been written in the copies of the Quran, and it is also the first Surah to be recited in Salat (prayer).
وَسُمِّيَتْ أُمَّ الْكِتَابِ أَنَّهُ يُبْدَأُ بِكِتَابَتِهَا فِي الْمَصَاحِفِ، وَيُبْدَأُ بِقِرَاءَتِهَا فِي الصَّلاَةِ. وَالدِّينُ الْجَزَاءُ فِي الْخَيْرِ وَالشَّرِّ، كَمَا تَدِينُ تُدَانُ.
وَقَالَ مُجَاهِدٌ: بِالدِّينِ بِالْحِسَابِ.
{مَدِينِينَ} مُحَاسَبِينَ.