Prayer for protection for a child.

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It was narrated that Ibn 'Abbas said: The Prophet (Peace and Blessing upon Him) used to seek protection for Al-Hasan and Al- Husayn:

"A'udhu bi kalimat-Allah il-tammah min kulli shaytanin wa hammah wa min kulli 'aynin lammah"

I seek refuge in the perfect words of Allah from every devil and poisonous reptile, and from every envious evil eye.

And he would say:

"Your father (i.e., Ibrahim) used to seek protection by means of them (these words) for Isma'il and Ishaq."

Sahih Al Bukhari