عَنْ أَنَسِ بْنِ مَالِكٍ رَضِيَ اللَّهُ عَنْهُ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ قُلْ يَا أَيُّهَا الْكَافِرُونَ [سورة الكافرون] رُبْعُ الْقُرْآنِ وَإِذَا زُلْزِلَتِ الْأَرْضُ [سورة الزلزلة] رُبْعُ الْقُرْآنِ وَإِذَا جَاءَ نَصْرُ اللَّهِ [سورة النصر] رُبْعُ الْقُرْآنِ
Narrated by Sayyiduna Anas bin Malik (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: Surah Al-Kafirun is a quarter of the Holy Qur'an, Surah Az-Zalzalah is also a quarter of the Holy Qur'an, and Surah An-Nasr is also equal to a quarter of the Qur'an.