Sunan Abi Dawud 3980
سنن أبي داود#3980Sahihحَدَّثَنَا مُحَمَّدُ بْنُ كَثِيرٍ، أَخْبَرَنَا سُفْيَانُ، عَنْ أَسْلَمَ الْمِنْقَرِيِّ، عَنْ عَبْدِ اللَّهِ، عَنْ أَبِيهِ عَبْدِ الرَّحْمَنِ بْنِ أَبْزَى، قَالَ قَالَ أُبَىُّ بْنُ كَعْبٍ { بِفَضْلِ اللَّهِ وَبِرَحْمَتِهِ فَبِذَلِكَ فَلْتَفْرَحُوا } . قَالَ أَبُو دَاوُدَ بِالتَّاءِ .
Narrated Ubayy b. Ka'b:"Say, in the bounty of Allah, and in His mercy- in that let you rejoice
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniHasan Sahih
Muhammad Muhyi Al-Din Abdul HamidHasan Sahih
Shuaib Al ArnautHasan
Zubair Ali ZaiHasan
In-book reference: 32:12