Is the Duha prayer a confirmed recommended practice?

Question:
Is it recommended to be consistent in performing the two rak'ahs of Duha?

Answer:
Yes, being consistent in performing it is a recommended practice, and the Prophet (peace and blessings be upon him) advised Abu Hurayrah, Abu al-Darda, and others to perform it.
Q: Is it a confirmed recommended practice?
A: Yes, it is a confirmed recommended practice.
Q: Based on his (peace and blessings be upon him) statement?
A: It is a recommended practice based on his (peace and blessings be upon him) statement and his occasional performance of it, but he (peace and blessings be upon him) advised performing it and emphasized it, and perhaps he left off its regular performance so as not to make it difficult for his Ummah. Aisha said, as in some of what Muslim narrated: He used to pray Duha four rak'ahs and increase whatever Allah willed, and in some narrations from her, she said she never saw him pray it except when he returned from his absence.
Q: Is there anything reported regarding its recitation?
A: No, nothing has been facilitated.
Q: What is the timing of its performance, from when to when?
A: From the rising of the sun to the standing of the sun, all of it is Duha.