The Messenger of Allah ﷺ said, "Whoever prays twelve units of the forenoon prayer, Allah will build for him a palace of gold in Paradise."
حدثنا أبو كريب محمد بن العلاء حدثنا يونس بن بكير عن محمد بن إسحق قال حدثني موسى بن فلان بن أنس عن عمه ثمامة بن أنس بن مالك
قال رسول الله ﷺ من صلى الضحى ثنتي عشرة ركعة بنى الله له قصرا من ذهب في الجنة
[Its chain of transmission is daif] Ibn Majah also reported it in the chapter on establishing the prayers, section on what has been narrated about the Duha prayer, no. 1380, from Abu Kurayb, with the same chain. Musa bin so-and-so is unknown (Taqrib).There are also narrations on this subject from Umm Hani [to come, 474], Abu Hurairah [to come, 476], Naeem bin Hammar [Abu Dawud, no. 1289], Abu Dharr [to come, 475], Ayesha [Muslim, no. 719, and Tirmidhi in Shamail, no. 287], Abu Umama [Ahmad, 5/265], Utba bin Abdul-Sulami [Tabarani in al-Kabir, 174/8, no. 7649, p. 180, no. 7663, and see 17/129, no. 317], Ibn Abu Awfa [Abd bin Humayd, no. 527], Abu Saeed [to come, 477], Zayd bin Arqam [Muslim, no. 748], and Ibn Abbas [Tabarani in al-Awsat, 225/5, 226, no. 4446].