Hadithcore
Sahih Muslim, 728 a
sahih

Umm Habiba (the wife of the Prophet) reported Allah's Messenger (ﷺ) as saying:

A house will be built in Paradise, for anyone who prays in a day and a night twelve rak'ahs; and she added: I have never abandoned (observing them) since I heard it from the Messenger of Allah (ﷺ). Some of the other narrators said the same words: I have never abandoned (observing them) since I heard (from so and so).

حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ اللَّهِ بْنِ نُمَيْرٍ، حَدَّثَنَا أَبُو خَالِدٍ، - يَعْنِي سُلَيْمَانَ بْنَ حَيَّانَ - عَنْ دَاوُدَ بْنِ أَبِي هِنْدٍ، عَنِ النُّعْمَانِ بْنِ سَالِمٍ، عَنْ عَمْرِو بْنِ أَوْسٍ، قَالَ حَدَّثَنِي عَنْبَسَةُ بْنُ أَبِي سُفْيَانَ، فِي مَرَضِهِ الَّذِي مَاتَ فِيهِ بِحَدِيثٍ يُتَسَارُّ إِلَيْهِ قَالَ سَمِعْتُ أُمَّ حَبِيبَةَ تَقُولُ سَمِعْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم يَقُولُ ‏

‏ مَنْ صَلَّى اثْنَتَىْ عَشْرَةَ رَكْعَةً فِي يَوْمٍ وَلَيْلَةٍ بُنِيَ لَهُ بِهِنَّ بَيْتٌ فِي الْجَنَّةِ ‏

‏ ‏.‏ قَالَتْ أُمُّ حَبِيبَةَ فَمَا تَرَكْتُهُنَّ مُنْذُ سَمِعْتُهُنَّ مِنْ رَسُولِ اللَّهِ صلى الله عليه وسلم ‏.‏ وَقَالَ عَنْبَسَةُ فَمَا تَرَكْتُهُنَّ مُنْذُ سَمِعْتُهُنَّ مِنْ أُمِّ حَبِيبَةَ ‏.‏ وَقَالَ عَمْرُو بْنُ أَوْسٍ مَا تَرَكْتُهُنَّ مُنْذُ سَمِعْتُهُنَّ مِنْ عَنْبَسَةَ ‏.‏ وَقَالَ النُّعْمَانُ بْنُ سَالِمٍ مَا تَرَكْتُهُنَّ مُنْذُ سَمِعْتُهُنَّ مِنْ عَمْرِو بْنِ أَوْسٍ ‏.‏

References2 variants
In-Book Reference
Book 6, Hadith 124
USC-MSA web (English) reference
Book 4, Hadith 1579 (deprecated numbering scheme)
Sharh · explanationclick to expand
The Prophet (may Allah's peace and blessings be upon him) used to teach his Ummah the virtuous deeds and clarify their rewards to encourage the people to perform them. In this Hadīth, the Messenger of Allah (may Allah's peace and blessings be upon him) says: "Whoever prays twelve prostrations during a day on a voluntary basis," i.e., other than the obligatory prayers, or they are the regular supererogatory prayers, namely: four Rak‘ahs before the Zhuhr prayer and two Rak‘ahs after it, two Rak‘ahs after the Maghrib prayer, two Rak‘ahs after the ‘Ishā’ prayer, and two Rak‘ahs before the Fajr prayer, as related in Sunan At-Tirmidhi. Whoever does so persistently, his reward will be that Allah will build a house for him in Paradise. In the Hadīth: Urging the performance of supererogatory prayers And in it: Demonstrating the merit of the regular supererogatory prayers.
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