It is narrated from Sayyidah Asma' bint Umays (may Allah be pleased with her) that she said to the Prophet (peace and blessings be upon him): The sons of Ja'far are afflicted by the evil eye; may I have ruqyah done for them? He (peace and blessings be upon him) said: "Yes. If anything were to outstrip the decree, the evil eye would outstrip it."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20750