It is narrated from Sayyiduna Ma'bad bin Hawdhah al-Ansari (may Allah be pleased with him) in a marfu' form (attributed to the Prophet) that the Prophet (peace and blessings be upon him) ordered applying ithmid (antimony kohl) at the time of sleep, and said: "The fasting person should avoid it."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17933