Umm Habiba reported God’s Messenger as saying, “A house will be built in paradise for anyone who prays in a day and a night twelve <i>rak'as</i>, four before and two after the noon prayer, two after the sunset prayer, two after the evening prayer, and two before the dawn prayer.” Tirmidhi transmitted it. In a version by Muslim she said she heard God’s Messenger say, “If any Muslim prays to God twelve voluntary <i>rak'as</i> daily, over and above the obligatory ones, God will build a house for him in paradise,” or, “a house will be built for him in paradise.”

عَن أُمِّ حَبِيبَةَ قَالَتْ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ:

مَنْ صَلَّى فِي يَوْمٍ وَلَيْلَةٍ اثْنَتَيْ عَشْرَةَ رَكْعَةً بُنِيَ لَهُ بَيْتٌ فِي الْجَنَّةِ: أَرْبَعًا قَبْلَ الظُّهْرِ وَرَكْعَتَيْنِ بَعْدَهَا وَرَكْعَتَيْنِ بَعْدَ الْمغرب وَرَكْعَتَيْنِ بعد الْعشَاء وَرَكْعَتَيْنِ قبل صَلَاة الْفَجْرِ

. رَوَاهُ التِّرْمِذِيُّ وَفِي رِوَايَةٍ لِمُسْلِمٍ أَنَّهَا قَالَتْ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ: «مَا مِنْ عَبْدٍ مُسْلِمٍ يُصَلِّي لِلَّهِ كُلَّ يَوْمٍ ثْنَتَيْ عَشْرَةَ رَكْعَةً تَطَوُّعًا غَيْرَ فَرِيضَةٍ إِلَّا بَنَى اللَّهُ لَهُ بَيْتًا فِي لاجنة أَوْ إِلَّا بُنِيَ لَهُ بَيْتٌ فِي الْجَنَّةِ»