The Prophet used to seek Allah’s protection for Al-Hasan and Al-Husain by saying:

‘U’eethukumaa bikalimaatil-laahit-taammati min kulli shaytaanin wa haammatin, wa min kulli ‘aynin laammatin.

Trans.:I seek protection for you in the Perfect Words of Allah from every devil and every beast , and from every envious blameworthy eye.

Reference: Al-Bukhari4/119.