that the Messenger of Allah (ﷺ) said: "Idha Zulzilat is equal to half of the Quran, Qul Huwa Allahu Ahad is equal to a third of the Quran, and Yul Ya Ayyuhal-Kafirun is equal to a fourth of the Quran."
Jami` at-Tirmidhi Book 45, Hadith 20
← Previous Hadith that the Messenger of Allah (ﷺ) said: "Whoever recites Idha Zulzilat, it equals half of the Quran for him. Whoever recites: Qul Ya Ayyuhal-Kafirun it equals a fourth of the Quran for him. And whoever recites: Qul Huwa Allahu Ahad it equals a third of the Quran for him."

Jami` at-Tirmidhi Book 45, Hadith 19 Next Hadith → that the Messenger of Allah (ﷺ) said to a man among his Companions: "Have you married O so-and-so?" He said: "No by Allah O Messenger of Allah! And I do not have anything to marry with." He said: "Do you not know: Qul Huwa Allahu Ahad?" He said: "Of course." He said: "It is a third of the Quran." He said: "Do you not know Idha Ja Nasrullahi Wal-Fath?" He said: "Of course." He said: "It is a fourth of the Quran." He said: "Do you not know Qul Ya Ayyuhal-Kafirun?" He said: "Of course." He said: "It is a fourth of the Quran." He said: "Do you not know Idha Zulzilat Al-Ard?" He said: "Of course." He said: "It is a fourth of the Quran." He said: "Marry, marry."

Jami` at-Tirmidhi Book 45, Hadith 21