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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:10463 – Aḥmad b. Sulaymān > Jaʿfar b. ʿAwn > ʿAmr b. ʿUthmān b. Mawhab > Mūsá b. Ṭalḥah

[Machine] That Abu Ayoub used to say, "Indeed, Allah is the One, the Most Independent, equivalent to one-third of the Quran."  

الكبرى للنسائي:١٠٤٦٣ – أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ قَالَ حَدَّثَنَا جَعْفَرُ بْنُ عَوْنٍ عَنْ عَمْرِو بْنِ عُثْمَانَ بْنِ مَوْهَبٍ عَنْ مُوسَى بْنِ طَلْحَةَ

أَنَّ أَبَا أَيُّوبَ كَانَ يَقُولُ «إِنَّ اللهَ الْوَاحِدُ الصَّمَدُ تَعْدِلُ بِثُلُثِ الْقُرْآنِ»  

See similar narrations below:

Collected by Ibn Mājah, Aḥmad
ibnmajah:3789 – ʿAlī b. Muḥammad > Wakīʿ > Sufyān > Abū Qays al-Awdī > ʿAmr b. Maymūn > Abū Masʿūd al-Anṣārī

"The Messenger of Allah ﷺ said: "Allahu ahad, Al-Wahidus-Samad [Allah (the) One, the One the Self-Sufficient Master] is equivalent to one third of the Quran."  

ابن ماجة:٣٧٨٩ – حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ حَدَّثَنَا وَكِيعٌ عَنْ سُفْيَانَ عَنْ أَبِي قَيْسٍ الأَوْدِيِّ عَنْ عَمْرِو بْنِ مَيْمُونٍ عَنْ أَبِي مَسْعُودٍ الأَنْصَارِيِّ قَالَ

قَالَ رَسُولُ اللَّهِ ﷺ اللَّهُ أَحَدٌ الْوَاحِدُ الصَّمَدُ تَعْدِلُ ثُلُثَ الْقُرْآنِ  

ahmad:11181 – Yaḥyá > Mālik > ʿAbd al-Raḥman b. ʿAbdullāh b. ʿAbd al-Raḥman b. Abū Ṣaʿṣaʿah from his father > Abū Saʿīd al-Khudrī

[Machine] It was narrated by the Prophet ﷺ that he said, "Say, He (Allah) is Allah, the One, who is fair or being dealt with fairly, equivalent to one-third of the Quran."  

أحمد:١١١٨١ – حَدَّثَنَا يَحْيَى عَنْ مَالِكٍ حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ عَبْدِ اللهِ بْنِ عَبْدِ الرَّحْمَنِ بْنِ أَبِي صَعْصَعَةَ عَنْ أَبِيهِ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ

عَنِ النَّبِيِّ ﷺ قَالَ قُلْ هُوَ اللهُ أَحَدٌ تَعْدِلُ أَوْ تُعْدَلُ بِثُلُثِ الْقُرْآنِ