Game of Thrones Season 6 Episode 07 The Broken Man
Margaery pleads for Olenna to return to Highgarden, slipping her a piece of paper with the sigil of House Tyrell drawn on it, indicating that she is still loyal to her family.
MARGAERY: Go home. Find comfort in prayer and good works. The Mother watches over us all.
OLENNA: I’ll see you soon, my dear.
MARGAERY: Seven blessings to you, Grandmother.
Source text: Wikipedia.