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
tabarani:3420 – ʿAmr b. Abū al-Ṭāhir b. al-Sarḥ al-Miṣrī > Abū Ṣāliḥ al-Ḥarrānī > Ibn Lahīʿah > ʿAbd al-Raḥman b. Ziyād b. Anʿam > ʿUtbah b. Ḥumayd > ʿUbādah b. Nasī > Ibn Ghanm > Abū Mālik al-Ashʿarī

[Machine] I asked, "O Messenger of Allah, what is the completion of righteousness?" He said, "To work in secret as you would in public."  

الطبراني:٣٤٢٠ – حَدَّثَنَا عَمْرُو بْنُ أَبِي الطَّاهِرِ بْنِ السَّرْحِ الْمِصْرِيُّ ثنا أَبُو صَالِحٍ الْحَرَّانِيُّ ثنا ابْنُ لَهِيعَةَ عَنْ عَبْدِ الرَّحْمَنِ بْنِ زِيَادِ بْنِ أَنْعَمَ عَنْ عُتْبَةَ بْنِ حُمَيْدٍ عَنْ عُبَادَةَ بْنِ نَسِيٍّ عَنِ ابْنِ غَنْمٍ عَنْ أَبِي مَالِكٍ الْأَشْعَرِيِّ قَالَ

قُلْتُ يَا رَسُولَ اللهِ مَا تَمَامُ الْبِرِّ؟ قَالَ «أَنْ تَعْمَلَ فِي السِّرِّ عَمَلَ الْعَلَانِيَةِ»  

See similar narrations below:

Collected by Ṭabarānī, Suyūṭī

أَبُو عَامِرٍ السَّكُونِيُّ

tabarani:19094 – Abū al-Zinbāʿ Rawḥ b. al-Faraj > Yaḥyá b. Bukayr > Ibn Lahīʿah > ʿAbd al-Raḥman b. Ziyād b. Anʿam > ʿUtbah b. Ḥumayd > ʿUbādah b. Nusay > ʿAbd al-Raḥman b. Ghanm > Abū ʿĀmir al-Sakūnī

[Machine] I said, "O Messenger of Allah, what is the complete righteousness?" He said, "To do in secret the deeds of the openly apparent."  

الطبراني:١٩٠٩٤ – حَدَّثَنَا أَبُو الزِّنْبَاعِ رَوْحُ بْنُ الْفَرَجِ ثنا يَحْيَى بْنُ بُكَيْرٍ ثنا ابْنُ لَهِيعَةَ عَنْ عَبْدِ الرَّحْمَنِ بْنِ زِيَادِ بْنِ أَنْعَمَ عَنْ عُتْبَةَ بْنِ حُمَيْدٍ عَنْ عُبَادَةَ بْنِ نُسَيٍّ عَنْ عَبْدِ الرَّحْمَنِ بْنِ غَنْمٍ عَنْ أَبِي عَامِرٍ السَّكُونِيِّ قَالَ

قُلْتُ يَا رَسُولَ اللهِ مَا تَمَامُ الْبِرِّ؟ قَالَ «أَنْ تَعْمَلَ فِي السِّرِّ عَمَلَ الْعَلَانِيَةِ»