The following is the same prayer being said during the Novena at the National Shrine of The Divine Mercy.
Venerable Casimir Wyszynski
Prayer through the Intercession of Ven. Casimir Wyszynski
O God, Merciful Father, in the heart of
Your Servant Casimir, You aroused such a great zeal
for accomplishing corporal and spiritual deeds of
mercy; deign to grant to us through his intercession
the grace for which we implore You...
(Here mention your special intentions).
Prayer for the Beatification of Ven. Casimir Wyszynski
Most Holy and undivided Trinity, You choose to
live in the hearts of Your faithful servants, and after
their death to reward their merits with the glory of
heaven. Grant, we implore, that Your servant,
Casimir, who with apostolic zeal faithfully served the
Church under the patronage of the Immaculate Virgin
Mary, may be numbered among the Blessed, through
Christ our Lord. Amen.