The practice of the First Saturday devotion was requested by Our Lady of Fatima, who appeared to three shepherd children in Fatima, Portugal, multiple times starting in 1917.
She said to Lucia, the oldest of the three children:
“I shall come to ask . . . that on the First Saturday of every month, Communions of reparation be made in atonement for the sins of the world.”
Preparatory prayers before the 8:30 am Mass
Rosary following Mass