It is narrated from Sayyidah Asma' bint Umays (may Allah be pleased with her) that she brought the two sons of Ja'far to the Prophet (peace and blessings be upon him) and said: People have set upon your nephews (that is, they afflict them with the evil eye). He (peace and blessings be upon him) said: "Have ruqyah done for them."
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 20746