Sunan Abi Dawud 1300
سنن أبي داود#1300Hasanحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي الأَسْوَدِ، حَدَّثَنِي أَبُو مُطَرِّفٍ، مُحَمَّدُ بْنُ أَبِي الْوَزِيرِ حَدَّثَنَا مُحَمَّدُ بْنُ مُوسَى الْفِطْرِيُّ، عَنْ سَعْدِ بْنِ إِسْحَاقَ بْنِ كَعْبِ بْنِ عُجْرَةَ، عَنْ أَبِيهِ، عَنْ جَدِّهِ، أَنَّ النَّبِيَّ صلى الله عليه وسلم أَتَى مَسْجِدَ بَنِي عَبْدِ الأَشْهَلِ فَصَلَّى فِيهِ الْمَغْرِبَ فَلَمَّا قَضَوْا صَلاَتَهُمْ رَآهُمْ يُسَبِّحُونَ بَعْدَهَا فَقَالَ " هَذِهِ صَلاَةُ الْبُيُوتِ " .
Narrated Ka'b ibn Ujrah: The Prophet (ﷺ) came to the mosque of Banu AbdulAshhal. He prayed the sunset prayer there. When they finished the prayer, he saw them praying the supererogatory prayer after it. He said: This is the prayer to be offered in the houses
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:
In-book reference: 5:51