that the Messenger of Allah ﷺ said: "Whoever recites Idha Zulzilat, it equals half of the Qur'an for him. Whoever recites: Qul Ya Ayyuhal-Kafirun it equals a fourth of the Qur'an for him. And whoever recites: Qul Huwa Allahu Ahad it equals a third of the Qur'an for him."
قَالَ رَسُولُ اللَّهِ ﷺ مَنْ قَرَأَ إِذَا زُلْزِلَتِ عُدِلَتْ لَهُ بِنِصْفِ الْقُرْآنِ وَمَنْ قَرَأَْ قُلْ يَا أَيُّهَا الْكَافِرُونَ ) عُدِلَتْ لَهُ بِرُبْعِ الْقُرْآنِ وَمَنْ قَرَأَْ قُلْ هُوَ اللَّهُ أَحَدٌ ) عُدِلَتْ لَهُ بِثُلُثِ الْقُرْآنِ