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:10447 – Muḥammad b. Qudāmah > Jarīr > Manṣūr > Hilāl b. Yasāf > al-Rabīʿ b. Khuthaym > Āmraʾah from al-Anṣār > Abū Ayyūb

[Machine] The Messenger of Allah, ﷺ , said, "Is it difficult for any of you to recite one-third of the Quran every night?" We remained silent, so he repeated his question three times, saying, "I continue to ask and you remain silent." Then he said, "Whoever recites 'Say, He is Allah, the One' (Surah Al-Ikhlas) in one night, has indeed recited one-third of the Quran."  

الكبرى للنسائي:١٠٤٤٧ – أَخْبَرَنِي مُحَمَّدُ بْنُ قُدَامَةَ قَالَ حَدَّثَنَا جَرِيرٌ عَنْ مَنْصُورٍ عَنْ هِلَالِ بْنِ يَسَافٍ عَنِ الرَّبِيعِ بْنِ خُثَيْمٍ عَنِ امْرَأَةٍ مِنَ الْأَنْصَارِ عَنْ أَبِي أَيُّوبَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «أَيَعْجِزُ أَحَدُكُمْ أَنْ يَقْرَأَ فِي كُلِّ لَيْلَةٍ ثُلُثَ الْقُرْآنِ؟» فَسَكَتْنَا فَأَعَادَ ثَلَاثَ مَرَّاتٍ يَقُولُ لَنَا وَنَسْكُتُ ثُمَّ قَالَ مَنْ قَرَأَ فِي لَيْلَةٍ {قُلْ هُوَ اللهُ أَحَدٌ} [الإخلاص 1] فَقَدْ قَرَأَ ثُلُثَ الْقُرْآنِ  

See similar narrations below:

Collected by Muslim, Ṭabarānī, Suyūṭī
muslim:811a – Zuhayr b. Ḥarb And Muḥammad b. Bashhār > Zuhayr > Yaḥyá b. Saʿīd > Shuʿbah > Qatādah > Sālim b. Abū al-Jaʿd > Maʿdān b. Abū Ṭalḥah > Abū al-Dardāʾ

Is any one of you incapable of reciting a third of the Qur'an in a night? They (the Companions) asked: How could one recite a third of the Qur'an (in a night)? Upon this he (the Holy Prophet) said: "'Say: He is Allah, One' (Qur'an. cxii) is equivalent to a third of the Qur'an."  

مسلم:٨١١a – وَحَدَّثَنِي زُهَيْرُ بْنُ حَرْبٍ وَمُحَمَّدُ بْنُ بَشَّارٍ قَالَ زُهَيْرٌ حَدَّثَنَا يَحْيَى بْنُ سَعِيدٍ عَنْ شُعْبَةَ عَنْ قَتَادَةَ عَنْ سَالِمِ بْنِ أَبِي الْجَعْدِ عَنْ مَعْدَانَ بْنِ أَبِي طَلْحَةَ عَنْ أَبِي الدَّرْدَاءِ

عَنِ النَّبِيِّ ﷺ قَالَ أَيَعْجِزُ أَحَدُكُمْ أَنْ يَقْرَأَ فِي لَيْلَةٍ ثُلُثَ الْقُرْآنِ قَالُوا وَكَيْفَ يَقْرَأْ ثُلُثَ الْقُرْآنِ ؟ قَالَ قُلْ هُوَ اللَّهُ أَحَدٌ تَعْدِلُ ثُلُثَ الْقُرْآنِ  

tabarani:4027 – al-Ḥusayn b. Isḥāq al-Tustarī > ʿUthmān b. Abū Shaybah > Jarīr > Manṣūr > Hilāl b. Yasāf > al-Rabīʿ b. Khuthaym > Āmraʾah from al-Anṣār > Abū Ayyūb

[Machine] The Messenger of Allah ﷺ said, "Can any of you not recite one-third of the Quran in one night?" We remained silent, so he repeated it three times and then said, "Whoever recites 'Say: He is Allah, the One' (Surah Al-Ikhlas) in one night, has indeed recited one-third of the Quran."  

الطبراني:٤٠٢٧ – حَدَّثَنَا الْحُسَيْنُ بْنُ إِسْحَاقَ التُّسْتَرِيُّ ثنا عُثْمَانُ بْنُ أَبِي شَيْبَةَ ثنا جَرِيرٌ عَنْ مَنْصُورٍ عَنْ هِلَالِ بْنِ يَسَافٍ عَنِ الرَّبِيعِ بْنِ خُثَيْمٍ عَنِ امْرَأَةٍ مِنَ الْأَنْصَارِ عَنْ أَبِي أَيُّوبَ قَالَ

قَالَ رَسُولُ اللهِ ﷺ «أَيَعْجِزُ أَحَدُكُمْ أَنْ يَقْرَأَ فِي لَيْلَةٍ بِثُلُثِ الْقُرْآنِ؟» فَسَكَتْنَا فَقَالَ ثَلَاثَ مَرَّاتٍ وَسَكَتَ ثُمَّ قَالَ «مَنْ قَرَأَ فِي لَيْلَةٍ بِقُلْ هُوَ اللهُ أَحَدٌ فَقَدْ قَرَأَ بِثُلُثِ الْقُرْآنِ»  

suyuti:9256a –
Request/Fix translation

  

السيوطي:٩٢٥٦a –

"أَيَعْجِزُ أحَدُكُمْ أنْ يَقْرأ ثُلُث القرآنِ في ليلةٍ؟ فإِنَّه مَنْ قرأَ {قُلْ هُوَ اللَّهُ أَحَدٌ (1) اللَّهُ الصَّمَدُ} في ليلة فقد قرأ ليلته ثُلُثَ القُرآن ".  

[حم] أحمد والدارمى، وعبد بن حميد، [ت] الترمذي حسن، [ن] النسائي [طب] الطبرانى في الكبير عن أبى أيوب