It is narrated from Sayyiduna Wathilah (may Allah be pleased with him); he said: When the Messenger of Allah (peace and blessings be upon him) conquered Khaybar, a feast was prepared for him. He (peace and blessings be upon him) ate reclining and applied (depilatory) lime (nurah). Then the sun troubled him (peace and blessings be upon him), so he (peace and blessings be upon him) covered himself with a shade.
Hadith Referenceالمعجم الكبير للطبراني / باب الواو / 18369