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
muslim:1048b – Ibn al-Muthanná And Ibn Bashhār > Ibn al-Muthanná > Muḥammad b. Jaʿfar > Shuʿbah > Qatādah > Anas b. Mālik

I heard the Messenger of Allah ﷺ as saying this, but I do not know whether this thing was revealed to him or not, but he said to.  

مسلم:١٠٤٨b – وَحَدَّثَنَا ابْنُ الْمُثَنَّى وَابْنُ بَشَّارٍ قَالَ ابْنُ الْمُثَنَّى حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ أَخْبَرَنَا شُعْبَةُ قَالَ سَمِعْتُ قَتَادَةَ يُحَدِّثُ عَنْ أَنَسِ بْنِ مَالِكٍ قَالَ

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ فَلاَ أَدْرِي أَشَىْءٌ أُنْزِلَ أَمْ شَىْءٌ كَانَ يَقُولُهُ بِمِثْلِ حَدِيثِ أَبِي عَوَانَةَ