The father of Abu al-Ushara' al-Darimi (may Allah be pleased with him) says: I said: O Messenger of Allah, is slaughter valid only at the throat or the upper chest? He (peace and blessings be upon him) said: "If you were to stab it in its thigh, that would suffice for you."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6689