Sunan an-Nasa'i 1796
سنن النسائي#1796SahihIt was narrated that 'Ata said:"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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih
In-book reference: 20:199