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
abudawud:3265 – Muḥammad b. ʿAbd al-ʿAzīz b. Abū Rizmah > Zayd b. Ḥubāb > Muḥammad b. Hilāl from my father > Abū Hurayrah

When the Messenger of Allah ﷺ swore an oath, it was: No, and I beg forgiveness of Allah.  

أبو داود:٣٢٦٥ – حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الْعَزِيزِ بْنِ أَبِي رِزْمَةَ أَخْبَرَنِي زَيْدُ بْنُ حُبَابٍ أَخْبَرَنِي مُحَمَّدُ بْنُ هِلاَلٍ حَدَّثَنِي أَبِي

أَنَّهُ سَمِعَ أَبَا هُرَيْرَةَ يَقُولُ كَانَتْ يَمِينُ رَسُولِ اللَّهِ ﷺ إِذَا حَلَفَ يَقُولُ لاَ وَأَسْتَغْفِرُ اللَّهَ