From Sahih Muslim (Hadith 1694):
Umm Habiba (the wife of the Holy 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)
Reference: Muslim 1694