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:4993 – [Chain 1] Mūsá b. Ismāʿīl > Ḥammād [Chain 2] Naṣr b. ʿAlī > Muhannā

The Prophet ﷺ said: To harbour good thoughts is a part of well-conducted worship. (This is according to Nasr's version). Abu Dawud said: Mahna' is reliable and he is from Basrah.  

أبو داود:٤٩٩٣ – حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ حَدَّثَنَا حَمَّادٌ ح وَحَدَّثَنَا نَصْرُ بْنُ عَلِيٍّ عَنْ مُهَنَّا أَبِي شِبْلٍ
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قَالَ أَبُو دَاوُدَ وَلَمْ أَفْهَمْهُ مِنْهُ جَيِّدًا عَنْ حَمَّادِ بْنِ سَلَمَةَ عَنْ مُحَمَّدِ بْنِ وَاسِعٍ عَنْ شُتَيْرٍ قَالَ نَصْرٌ ابْنِ نَهَّارٍ عَنْ أَبِي هُرَيْرَةَ قَالَ نَصْرٌ عَنْ رَسُولِ اللَّهِ ﷺ قَالَ حُسْنُ الظَّنِّ مِنْ حُسْنِ الْعِبَادَةِ قَالَ أَبُو دَاوُدَ مُهَنَّا ثِقَةٌ بَصْرِيٌّ