The Messenger of Allah ﷺ said, "The treats for one fasting are oil and incense."
حدثنا أحمد بن منيع حدثنا أبو معاوية عن سعد بن طريف عن عمير بن مأمون
قال رسول الله ﷺ تحفة الصائم الدهن والمجمر
No references are available.
[Its isnad is very daif] Tabarani narrated it in al-Kabir: 3/89, no. 2751, from the hadith of Abu Muawiya through this route. Saad bin Tarif is discarded, and Umayr bin Mamoon is of unknown status.