Prayer for the Souls in Purgatory

Found this 5 years ago in Catholic online site.

St. Gertrude the Great was told by our Lord that each time the following prayer was said, one thousand souls would be released from purgatory!

“Eternal Father, I offer you the most precious blood of your divine Son, Jesus, in union with the masses said throughout the world today, for all the holy souls in purgatory, for sinners everywhere, for sinners in the universal Church, those in my own home and within my family. Amen.”