The sunnah salah that is performed in the mid-morning.
Duha, as an Arabic word, lexically means “touch of the sun, perspiration, having mid-morning meal”.
The word “dahwatun” means progressing of the day, the rising of the sun a bit; the word duha means mid-morning, day light. In this sense, duha is mentioned in the Qur’anic verses listed below.
1- “Or else did they feel secure against its coming in broad daylight while they played about (carefree)? (al-A'raf, 7/98)
2- Moses said: "Your tryst is the Day of the Festival, and let the people be assembled when the sun is well up." (Taha, 20/59)
3- “I swear by the early hours of the day” (ad-Duha, 93/1)
4- “The Day they see it, (it will be) as if they had tarried but a single evening, or (at most till) the following morn!” (an-Naziat, 79/46)
As a fiqh term,duha is the time that comes after about two hours following the sunrise. This time goes on just before the sun’s inclination to the west. This time is called “duha time”. In Islam, there is duha (mid-morning) salah that is mandub and that is performed during this period. Duhâ salah is not mentioned in the Qur’an. This salah is mentioned in some hadiths. In his book named Mu'jamu'l-Kabir, Tabarani reports via Abu'd-Darda that our Prophet said: “A person who performs a two-rakah duha salah will not be heedless. A person who performs a four-rakah duha salah will be among the ones who worship Allah. If a person who performs this salah as six rakahs, this salah will be sufficient for him/her as duha salah that day. And if a person performs this salah as eight rakahs, Allah regards him/her as a person who obeys himself. If a person performs this salah as twelve rakahs, Allah builds him/her a mansion in Paradise.” (at-Tahtawi, 321)
The following hadiths are also narrated about duha salah: Umm Hani said,“The Messenger of Allah (pbuh) performed an eight-rakah salah on the day of the conquest of Mecca. This salah was duha salah.” Abu Huraira said, “My friend, the Messenger of Allah (pbuh), advised me three things; I will not give them up until I die: To fast three days every month, to perform duha salah, to sleep after performing witr salah” (Tajrid as-Sarih Translation, IV, 151). Hadrat Aisha said: “The Messenger of Allah (pbuh) performed duha salah as four rakahs and increased it as he wished.
As for the fiqh decrees of duha salah, it is mandûb to perform this salah as four rakahs or more. This salah can be performed up to twelve rakahs. Also there are some scholars who say at least two rakahs, at most twelve rakahs, the average and the mostvirtuous is eight rakahs. The great muhaddith Hakim said, “I made friends with hadith imams who had profound knowledge and who were hadith hafizes. As their knowledge on that issue wascredible, I saw them perform duha salah as four rakahs. I have the same opinion. (Tahtawi, 321) On the other hand, although scholars state different views about whether it is more virtuous to perform duha salah regularly or to perform it from time to time, the preferred view is that it is more virtuous to perform it regularly.
As for the time of duha salah, this time starts about two hours after the rising of the sun and ends just before the sun inclines to the west slightly from the middle of the sky.