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
ahmad-zuhd:1046 – ʿAbdullāh from my father > ʿAbd al-Raḥman b. Mahdī > Isrāʾīl > Abū Yaḥyá > Mujāhid > Ibn ʿAbbās > Idhā Aradt

[Machine] To remember the faults of your friend, remember your own faults.  

الزهد لأحمد:١٠٤٦ – حَدَّثَنَا عَبْدُ اللَّهِ حَدَّثَنِي أَبِي حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ مَهْدِيٍّ حَدَّثَنَا إِسْرَائِيلُ عَنْ أَبِي يَحْيَى عَنْ مُجَاهِدٍ عَنِ ابْنِ عَبَّاسٍ قَالَ إِذَا أَرَدْتَ

أَنْ تَذْكُرَ عُيُوبَ صَاحِبِكَ فَاذْكُرْ عُيُوبَ نَفْسِكَ  

See similar narrations below:

Collected by Suyūṭī