Musnad Abu Ya'la al-Mawsili 148:53

Abu Khaythama narrated to us, Mu'alla ibn Mansur narrated to us, Muhammad ibn Muslim Abu Sa'id narrated to us, he said: Ziyad al-Numayri narrated to me, from Anas ibn Malik, from the Prophet, peace and blessings of Allah be upon him, who said: The Fire complained to its Lord and said: "O Lord, parts of me have consumed other parts." So He granted it two breaths: a breath in the winter and a breath in the summer. The intensity of the heat you find is from its heat, and the intensity of the cold you find is from its *zamharir* (intense cold).