The Messenger of Allah ﷺ said, "Whoever prays twelve units of prayer in a day and night beyond the obligatory prayers, a house will be built for him in Paradise."
قال رسول الله ﷺ: من صلى في يوم وليلة ثنتي عشرة ركعة سوى الفريضة، بني له بيت في الجنة.
Imam Ahmad (19709), Tabarani in Awsat (9432), and Bazzar in Kashf Astar (702) all narrated it through Hammad bin Zayd, from Harun Abu Ishaq Kufi of Hamdan, from Abu Burda bin Abu Musa, from his father, who related it. Its chain is hasan because of Harun Abu Ishaq, whom Ibn Main deemed reliable in one report, while in another report he said, "well known." See Jarh wa Tadil (9/99). Ibn Hibban mentioned him in Thiqat (7/582), and he is among the narrators discussed for the sake of distinguishing similar names, his name appearing in Tahdhib under the kunyas. Hafiz Haythami mentioned this hadith in Majma (2/231) and said, "Ahmad, Tabarani in Awsat and Kabir, and Bazzar narrated it," and he said, "Harun Abu Ishaq has no corroboration for this hadith."I say, Harun, as noted, is not accused of unreliability, rather his hadith is hasan, and he did not bring an unusual report, so the lack of corroboration does not harm it.As for what is related from Ayesha, who said, the Messenger of Allah said, "Whoever adheres to twelve rakat of the sunnah, Allah will build for him a house in Paradise, four rakat before Dhuhr and two after it, two rakat after Maghrib, two rakat after Isha, and two rakat before Fajr," this is daif.Tirmidhi (414), Nasai (1794), and Ibn Majah (1140) all narrated it through Ishaq bin Sulayman Razi, who said, Mughira bin Ziyad narrated to us, from Ataa, from Ayesha, who related the hadith. Tirmidhi said, "The hadith of Ayesha is a gharib hadith from this route, and Mughira bin Ziyad has been criticized by some scholars regarding his memory." End of quote.In Talkhis Habir (502) it states, Ahmad said, "Daif, and every hadith he attributes as raised to the Prophet is munkar." Nasai said, "This is an error, and perhaps Ataa said, 'from Anbasah,' which was then miscopied as 'Ayesha.'" That is, what is actually preserved is the hadith of Anbasah bin Abu Sufyan, from his sister Umm Habiba. End of quote.