Dua is Accepted and Answered when Waking up at Night

Narrated Ubada Bin As-Samit that Allah’s Messenger (salAllahu alayhi wasalam) said: ‘Whomever wakes up at night and says La ilaha illallahu wahdahu la shrika lahu lahulmulku, wa lahul hamdu, wa huwa ala kulli shai’in qadir. Alhamdu lillahi, wa subhanallahi wa la ilaha illallahu, wallah akbir, wa la hawla wala quwata illa billah (none has the right to be worshipped but Allah (Subhanahu wa Ta’ala) He is the o­nly o­ne who has no partners. His is the kingdom and all the praises are for Allah (Subhanahu wa Ta’ala) All the glories are for Allah (Subhanahu wa Ta’ala) And none has the right to be worshipped but Allah (Subhanahu wa Ta’ala) and Allah (Subhanahu wa Ta’ala) is the most Great and there is neither might nor power except with Allah (Subhanahu wa Ta’ala) and then says, Allahumma ighfir li (O Allah! Forgive me) or invokes Allah (Subhanahu wa Ta’ala), he will be responded to and if he makes ablution and performs Salat (prayer), his Salat (prayer) will be accepted. [Sahih al-Bukhari]