Can you mention the reference for this Hadith?
ادعوا الله وأنتم موقنون بالإجابة
Imam Tirmidhi (rahimahullah) has recorded this as part of a longer Hadith on the authority of Sayyiduna Abu Hurayrah (radiyallahu ‘anhu).
(Sunan Tirmidhi, Hadith: 3479)
Supplicate to Allah in a while you have conviction that he will accept [your du’a].
And Allah Ta’ala Knows best.
Answered by: Moulana Suhail Motala
Approved by: Moulana Muhammad Abasoomar
Checked by: Moulana Haroon Abasoomar