Bismillaah:

Abu Umaamah رضي الله عنه relates:

The Messenger of Allaah صلى الله عليه وسلم said:

'' Whoever leaves his house to go to an obligatory prayer after having purified himself, his reward will be like the reward of one who performs Hajj in the state of Ihraam. And whoever leaves to perform the voluntary Duha prayer nothing causes him to Exert himself except it then his reward is like one preforming Umrah. And one prayer after another prayer, in which there is no vain talk between the two, is written in the Illiyyin.''

Takhreej:

{ Imam Ahmad in his Musnad, Abu Dawud in his Sunnan and graded as Hasan by Shaykh Al Albaani and Abu Muaadh رحمهم الله }

*** And Allaah عزوجل knows best ****