Ibn 'Abbas narrated that the Messenger of Allah (S.A.W) used to seek refuge for Al-Hasan and Al-Husain saying:
""U'idhukuma bikalimatillahi-tammati,min kulli shaitanin wa hammatin, wa minkulli'ainin lammah (I seek refuge for the two of you in the Perfect Words of Allah, from every devil and every poisonous pest, and from every harmful eye)." And he would say: "It is with this that Ibrahim would seek refuge for Ishhaq and Ismail [peace be upon them]."
Another chain reports a similar narration.