Sunan Abi Dawud 1250
سنن أبي داود#1250Sahihحَدَّثَنَا مُحَمَّدُ بْنُ عِيسَى، حَدَّثَنَا ابْنُ عُلَيَّةَ، حَدَّثَنَا دَاوُدُ بْنُ أَبِي هِنْدٍ، حَدَّثَنِي النُّعْمَانُ بْنُ سَالِمٍ، عَنْ عَمْرِو بْنِ أَوْسٍ، عَنْ عَنْبَسَةَ بْنِ أَبِي سُفْيَانَ، عَنْ أُمِّ حَبِيبَةَ، قَالَتْ قَالَ النَّبِيُّ صلى الله عليه وسلم " مَنْ صَلَّى فِي يَوْمٍ ثِنْتَىْ عَشْرَةَ رَكْعَةً تَطَوُّعًا بُنِيَ لَهُ بِهِنَّ بَيْتٌ فِي الْجَنَّةِ " .
Narrated Umm Habibah:The Prophet (ﷺ) as saying: If anyone prays in a day and a night twelve rak'ahs voluntarily (supererogatory prayer), a house will be built from him in Paradise on account of these (rak'ahs)
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: 5:1