Shiva Purana
एते धन्या मृगाश्चैव ज्ञानहीनास्सुसंमताः ॥ स्वीयेनैव शरीरेण परोपकरणे रताः ॥ ८१॥
The deer are blessed. Though devoid of knowledge they are ready to help others by offering their own bodies.
english translation
ete dhanyA mRgAzcaiva jJAnahInAssusaMmatAH ॥ svIyenaiva zarIreNa paropakaraNe ratAH ॥ 81॥
hk transliteration by Sanscript