Um Abdullah, who works in a bakery in Nablus, the West Bank, says the three sisters, Ibtihal, Zeynab and Bayan, memorized the Quran in 8 years.
She says memorizing the Quran has helped them greatly in life and in school.
The sisters, who started learning the Quran at an early age, are now Quran teachers themselves.
All three of them are now successful university students and attribute all their achievements to the connection with the book of God.
Bayan, who studies industrial engineering at the University of Nablus, has won the fourth title at an international Quran competition in Jordan.
She says learning the Quran by heart and contemplating its teachings give one a comprehensive plan for life.
The three sisters, who teach Quran memorization at the Dar-ol-Quran center in the town of Qabalan, plan to develop the center and include courses on other Quranic sciences such as Tajweed, Tafsir (interpretation) and Hadith.