Du'a for children's protection

أُعِيذُكُمَا بِكَلِمَاتِ اللَّهِ التَّامَّةِ، مِنْ كُلِّ شَيْطَانٍ وَهَامَّةٍ، وَمِنْ كُلِّ عَيْنٍ لَامَّةٍ

U'idhukuma bikalimatil-lahit-tammah, min kulli shaytanin wa hammah, wa min kulli 'aynin lammah

I seek protection for you both in the Perfect Words of Allah from every devil and every poisonous pest, and from every envious blameworthy eye.

Ṣaḥīḥ al-Bukhārī 3371