The Sudarium is referred to in John 20:5-8.
The Sudarium of Oviedo, or Shroud of Oviedo, is a bloodstained cloth, 34" x 21", kept in the cathedral of Oviedo, Spain and claimed to be the cloth that was wrapped around the head of Jesus of Nazareth after he died.
ADORABLE FACE OF JESUS
Adorable Face of Jesus, whom all the angels adore,
may You be known, loved and adored by the whole world.
Sacred Face of Jesus, I desire to love and honor You more and more,
in reparation for the many sins committed before You.
O Sacred Face of Jesus veiled in the Adorable Sacrament of the Altar;
I Adore You and Love You.