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:1428 – Aḥmad b. Muḥammad b. Ḥanbal > Muḥammad b. Bakr > Hishām > Muḥammad > some companions

Muhammad reported on the authority of some of his teachers that Ubayy b. Ka'b led them in prayer during Ramadan. He used to recite the supplication (in the witr) during the second half of Ramadan.  

أبو داود:١٤٢٨ – حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدِ بْنِ حَنْبَلٍ حَدَّثَنَا مُحَمَّدُ بْنُ بَكْرٍ أَخْبَرَنَا هِشَامٌ عَنْ مُحَمَّدٍ عَنْ بَعْضِ أَصْحَابِهِ

أَنَّ أُبَىَّ بْنَ كَعْبٍ أَمَّهُمْ يَعْنِي فِي رَمَضَانَ وَكَانَ يَقْنُتُ فِي النِّصْفِ الآخِرِ مِنْ رَمَضَانَ  

See similar narrations below:

Collected by Bayhaqī
bayhaqi:4629 – Abū ʿAlī al-Rūdhbārī > Abū Bakr b. Dāsah > Abū Dāwud > Aḥmad b. Ḥanbal > Muḥammad b. Bakr > Hishām > Muḥammad > Ibn Sīrīn > some companions

Muhammad reported on the authority of some of his teachers that Ubayy b. Ka'b led them in prayer during Ramadan. He used to recite the supplication (in the witr) during the second half of Ramadan. (Using translation from Abū Dāʾūd 1428)   

البيهقي:٤٦٢٩ – أنبأ أَبُو عَلِيٍّ الرُّوذْبَارِيُّ أنبأ أَبُو بَكْرِ بْنُ دَاسَةَ ثنا أَبُو دَاوُدَ ثنا أَحْمَدُ بْنُ حَنْبَلٍ ثنا مُحَمَّدُ بْنُ بَكْرٍ أنبأ هِشَامٌ عَنْ مُحَمَّدٍ هُوَ ابْنُ سِيرِينَ عَنْ بَعْضِ أَصْحَابِهِ

أَنَّ أُبَيَّ بْنَ كَعْبٍ أَمَّهُمْ يَعْنِي فِي رَمَضَانَ وَكَانَ يَقْنُتُ فِي النِّصْفِ الْأَخِيرِ مِنْ رَمَضَانَ