When the sun has risen high and there is heat in its rays, the performance of 2,4,6,8 or 12 rakaats is called Dhuhaa (breakfast) prayer. This is full of countless rewards.
The Traditions say that the performance of 2 rak’aahs wipes away all ones sins. There are 360 joints in our body and to pay Sadaqah for each is obligatory (wajib). The 2 rak’aahs is enough to pay all the Sadaqah.
Performance of 4 rak’aahs places the performer's name among the Abids and is the Sunnah of Saliheen and promise the performer protection until the evening.
The performer of 6 rak’aahs is relieved of his day's worries. Performance of 8 rak’aahs places his name among the virtuous and the performer of 12 rak’aahs ensures a Golden Mansion or castle for himself in Paradise. (Tirmidhi, Ibn Majah, Ahmad & Abu Yala)
The preferred (mustahabb) time of performing Salat al-Dhuhaa is after 1/4 of the day has passed. This is deduced from a Hadith of Muslim. (Halabi; Sharah Kabeer pg.390).
“Whoever prayed twelve rak’aahs at the time of Dhuhaa, then Allah will, as reward, prepare a palace of gold for him in Paradise.” (Mishkat, Tirmidhi, Ibn Majah)
Learn about key moral & behaviour in Ramadhan.