Masruq (may Allah have mercy on him) narrates from Sayyiduna Abdullah (may Allah be pleased with him): When you shoot game and it falls from a mountain and dies, do not eat it, for it may have died from falling off the mountain; and if it falls into water and dies, do not eat it either, for it is possible that it was killed by the water.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيد والذبائح / 18942