This dua is just AMAZING!!!
O Allah, by Your knowledge of the unseen and by Your power
over the creation, let me live if You know that life is good for me,
and let me die if You know that death is good for me. O Allah, i
ask You to grant me fear of You in private and public. I ask You
for the word of truth in times of contentment and anger. I ask
You for moderation in wealth and in poverty. I ask You for the
blessings never ceasing and the coolness of my eye (i.e,pleasure)
that never ends. I ask You for the pleasure after Your judgement
and i ask You for a life of coolness after death. I ask You for the
delight of gazing upon Your face and the joy of meeting You
without any harm and misleading trials befalling me. O Allah,
dress us with the beauty of Faith and make us guides who are
upon (correct) guidance. Ameen.
An-Nisa'i 3/54,55.
Ahmad 4/364
Taken from Fortress of the Muslim.