"I was told that Umm Habibah bin Abi Sufyan said: "I heard the Messenger of Allah ﷺ say: 'Whoever prays twelve rak'ahs during the day and night, apart from the prescribed prayers, Allah (SWT) will build for him a house in Paradise.'" (Using translation from Nasāʾī 1796)
سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «مَنْ رَكَعَ ثِنْتَيْ عَشَرَةَ رَكْعَةً فِي يَوْمِهِ وَلَيْلَتِهِ سِوَى الْمَكْتُوبَةِ بَنَى اللهُ لَهُ بَيْتًا فِي الْجَنَّةِ»