Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
ahmad:12488ʿAbdullāh b. al-Walīd > Sufyān > Salamah b. And Rdān > Anas b. Mālik

[Machine] The Prophet Muhammad ﷺ said: Say, "O disbelievers, I do not worship what you worship. Nor are you worshippers of what I worship. Nor will I be a worshipper of what you worship. Nor will you be worshippers of what I worship. For you is your religion, and for me is my religion." When the earth is shaken with its (violent) shaking. And the earth will throw out its burdens. And man will say, "What is (wrong) with it?" That Day, it will report its news. Because your Lord has inspired it. That Day, the people will depart separated, to be shown [the result of] their deeds. So whoever does an atom's weight of good will see it. And whoever does an atom's weight of evil will see it.  

أحمد:١٢٤٨٨حَدَّثَنَا عَبْدُ اللهِ بْنُ الْوَلِيدِ حَدَّثَنَا سُفْيَانُ قَالَ حَدَّثَنِي سَلَمَةُ بْنُ وَرْدَانَ قَالَ سَمِعْتُ أَنَسَ بْنَ مَالِكٍ يَقُولُ

قَالَ رَسُولُ اللهِ ﷺ قُلْ يَا أَيُّهَا الْكَافِرُونَ رُبُعُ الْقُرْآنِ وَإِذَا زُلْزِلَتِ الْأَرْضُ رُبُعُ الْقُرْآنِ وَإِذَا جَاءَ نَصْرُ اللهِ رُبُعُ الْقُرْآنِ  


See similar narrations below:

Collected by Ḥākim, Suyūṭī
hakim:2078Abū al-ʿAbbās Muḥammad b. Aḥmad al-Maḥbūbī > Saʿīd b. Masʿūd > Yazīd b. Hārūn > Yamān b. al-Mughīrah al-ʿAnazī al-Baṣrī > ʿAṭāʾ b. Abū Rabāḥ > Ibn ʿAbbās > Qāl Rasūl

that the Messenger of Allah ﷺ said: "Idha Zulzilat is equal to half of the Qur'an, Qul Huwa Allahu Ahad is equal to a third of the Qur'an, and Yul Ya Ayyuhal-Kafirun is equal to a fourth of the Qur'an." (Using translation from Tirmidhī 2894)  

الحاكم:٢٠٧٨أَخْبَرَنَا أَبُو الْعَبَّاسِ مُحَمَّدُ بْنُ أَحْمَدَ الْمَحْبُوبِيُّ ثنا سَعِيدُ بْنُ مَسْعُودٍ ثنا يَزِيدُ بْنُ هَارُونَ أَنْبَأَ يَمَانُ بْنُ الْمُغِيرَةِ الْعَنَزِيُّ الْبَصْرِيُّ ثنا عَطَاءُ بْنُ أَبِي رَبَاحٍ عَنِ ابْنِ عَبَّاسٍ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ «إِذَا زُلْزِلَتْ تَعْدِلُ نِصْفَ الْقُرْآنِ وقُلْ يَا أَيُّهَا الْكَافِرُونَ تَعْدِلُ رُبْعَ الْقُرْآنِ وَقُلْ هُوَ اللَّهُ أَحَدٌ تَعْدِلُ ثُلُثَ الْقُرْآنِ»  

«هَذَا حَدِيثٌ صَحِيحُ الْإِسْنَادِ وَلَمْ يُخَرِّجَاهُ»
suyuti:16406a
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السيوطي:١٦٤٠٦a

{قُلْ يَا أَيُّهَا الْكَافِرُونَ} تَعْدلُ رُبُعَ الْقُرآنِ، {إِذَا زُلْزِلَتِ} تَعْدِلُ رُبُعَ الْقُرآنِ، {إِذَا جَاءَ نَصْرُ اللَّهِ وَالْفَتْحُ} رُبُعُ الْقُرَآنِ".  

[هب] البيهقى في شعب الإيمان عن أَنس