The Butön Gong Khukma (Wyl. bu ston gong khug ma) or Chimé Tsedrup (Wyl. 'chi med tshe sgrub) is a terma revealed by Guru Chöwang, and transmitted through the Shalu and Sakyapa traditions via Butön Rinchen Drup—which is why it is known as the Butön Gongkugma in these traditions. A "gong khug" is a small pouch worn around the neck or in the breast pocket of a shirt, close to the heart.
Jamgon Kongtrul Lodro Taye. rin chen gter mdzod chen mo. Kathmandu: Shechen Publications, 2007, vol. 6 p. 369-406.