Hadith 357

Narrated Umm Habibah (RA) the Mother of the Believers: She heard Allah's Messenger (SAW) say, "Whoever prays twelve (voluntary) Rak'at in a day and a night, a house will be built for him in Paradise due to them (the Rak'at)." [Reported by Muslim]. In another narration, it is mentioned: "Voluntarily".

وَعَنْ أُمِّ حَبِيبَةَ أُمِّ اَلْمُؤْمِنِينَ ‏-رَضِيَ اَللَّهُ عَنْهَا‏- قَالَتْ : سَمِعْتَ اَلنَّبِيَّ ‏- صلى الله عليه وسلم ‏-يَقُولُ : { مَنْ صَلَّى اِثْنَتَا عَشْرَةَ رَكْعَةً فِي يَوْمٍ وَلَيْلَةٍ بُنِيَ لَهُ بِهِنَّ بَيْتٌ فِي اَلْجَنَّةِ } رَوَاهُ مُسْلِمٌ .‏ وَفِي رِوَايَةٍ " تَطَوُّعًا" .‏ <sup>1</sup>‏

Hadith 357 - The Book of Prayer - Bulugh al-Maram - Sunnah.com