Abdur-Rahman bin Abi Laila narrated:
"No one informed that they saw Allah's Messenger (ﷺ) praying Ad-Duha except Umm Hani. She narrated that Allah's Messenger (ﷺ) entered her house on the Day of the Conquest of Makkah. He performed Ghusl and performed eight voluntary Rak'ah such that she had not ever seen him pray any Salat lighter than them, but that he completed the bowing and prostrations."
Anas bin Malik narrated that :
Allah's Messenger (ﷺ) said: "Whoever prays twelve Rak'ah of Ad-Duha, Allah will build a castle made of gold for him in Paradise."
Jubair narrated from Abu Ad-Darda, or Abu Dharr, that :
Allah's Messenger (ﷺ) narrated that Allah, Blessed and Most High said: "Son of Adam: Perform four Rak'ah for Me in the beginning of the day it will suffice you for…
Abu Hurairah narrated that :
Allah's Messenger (ﷺ) said: "Whoever continuously performs the two Rak'ah of Ad-Duha his sins will be forgiven, even if they be like the foam of the sea."
Abu Sa'eed Al-Khudri narrated:
"The Prophet (ﷺ) would pray Ad-Duha until we would say: 'He will not leave it.' And he would leave it until we would say: 'He will not pray it.'"