The Holy Bible has a number of good prayers for the mother-daughter relationship. "Let her find confidence in You, God, even when hard times come and she does not know what to do, by keeping her eyes fixed on You," reads 2 Chronicles 20:12. Traditional prayer, personal thoughts or a favorite poem are all good choices for meaningful devotion.
Proverbs Chapter 31 is good example of a religious prayer for the mother-daughter relationship. A shorter prayer, found in the first book of Samuel, reads "Let her learn early in life that to obey You, God, is the best way to the life her heart truly desires."
For a non-denominational option, a classic poem is also appropriate. Examples include Dorothy Parker's "Prayer For A New Mother" and "The Black Lace Fan My Mother Gave Me," written by Eavan Bowland. A number of well-known poems, listed by theme, are available on the website FamousPoetsandPoems.com.
"Prayer for a Daughter," written by comedian Tina Fey, is a prayer for the modern mother to her daughter. An excerpt reads, "May she be beautiful but not damaged, for it’s the damage that draws the creepy soccer coach’s eye, not the beauty." The full version of the prayer appears in her book, "Bossypants."