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:2380e – ʿAmr al-Nāqid > Sufyān b. ʿUyaynah > ʿAmr > Saʿīd b. Jubayr > Ibn ʿAbbās > Ubay b. Kaʿb

Ibn 'Abbas has reported this hadith on the authority of Ubayy b. ka'b that Allah's Apostle ﷺ used to recite this.  

مسلم:٢٣٨٠e – وَحَدَّثَنَا عَمْرٌو النَّاقِدُ حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ عَمْرٍو عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنِ ابْنِ عَبَّاسٍ عَنْ أُبَىِّ بْنِ كَعْبٍ

أَنَّ النَّبِيَّ ﷺ قَرَأَ { لَتَخِذْتَ عَلَيْهِ أَجْرًا}  

See similar narrations below:

Collected by Aḥmad, Ḥākim, Suyūṭī
ahmad:21115 – ʿAbdullāh > ʿAmr al-Nāqid > Sufyān > ʿAmr > Saʿīd b. Jubayr > Ibn ʿAbbās > Ubay b. Kaʿb

[Machine] On the authority of the Prophet ﷺ who said, "If I wished, I could have asked for a reward for it." [Al-Kahf 77].  

أحمد:٢١١١٥ – حَدَّثَنَا عَبْدُ اللهِ حَدَّثَنَا عَمْرٌو النَّاقِدُ حَدَّثَنَا سُفْيَانُ عَنْ عَمْرٍو عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنْ ابْنِ عَبَّاسٍ عَنْ أُبَيِّ بْنِ كَعْبٍ

عَنِ النَّبِيِّ ﷺ قَالَ {لَوْ شِئْتَ لَاتَّخَذْتَ عَلَيْهِ أَجْرًا} [الكهف 77]  

hakim:2958 – Jaʿfar b. Muḥammad b. Nuṣayr al-Khawwāṣ > Abū ʿImrān Mūsá b. Ibrāhīm > ʿAmr b. Muḥammad al-Nāqid > Sufyān b. ʿUyaynah > ʿAmr b. Dīnār > Saʿīd b. Jubayr > Ibn ʿAbbās > Ubay b. Kaʿb

[Machine] The Prophet ﷺ recited, "If you wish, you could have taken a wage for it" [Surah Al-Kahf 77], abbreviated.  

الحاكم:٢٩٥٨ – حَدَّثَنَا جَعْفَرُ بْنُ مُحَمَّدِ بْنِ نُصَيْرٍ الْخَوَّاصُ ثنا أَبُو عِمْرَانَ مُوسَى بْنُ إِبْرَاهِيمَ حَدَّثَنِي عَمْرُو بْنُ مُحَمَّدٍ النَّاقِدُ ثنا سُفْيَانُ بْنُ عُيَيْنَةَ عَنْ عَمْرِو بْنِ دِينَارٍ عَنْ سَعِيدِ بْنِ جُبَيْرٍ عَنِ ابْنِ عَبَّاسٍ عَنْ أُبَيِّ بْنِ كَعْبٍ

أَنَّ النَّبِيَّ ﷺ قَرَأَ {لَوْ شِئْتَ لَاتَّخَذْتَ عَلَيْهِ أَجْرًا} [الكهف 77] مُخَفَّفَةً  

«هَذَا حَدِيثٌ صَحِيحٌ عَلَى شَرْطِ الشَّيْخَيْنِ وَلَمْ يُخَرِّجَاهُ فِي الْحَدِيثِ الطَّوِيلِ» على شرط البخاري ومسلم