Bukhari :: Book 4 :: Volume 55 :: Hadith 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.' "
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