Sahih Bukhari
Prophets
Volume: 004 / Book Number: 055 / Hadith Number: 590
Narrated Ibn 'Abbas:
The Prophet used to seek Refuge with Allah for Al-Hasan and Al-Husain and say: "Your forefather (i.e. Abraham) used to seek Refuge with Allah for Ishmael and Isaac by reciting the following: 'O Allah! I seek Refuge with Your Perfect Words from every devil and from poisonous pests and from every evil, harmful, envious eye.' "