References

BhPr, 1, 8, 41.2
  rūkṣaṃ vayasyaṃ cakṣuṣyaṃ lekhanaṃ vātalaṃ jayet //Context
BhPr, 2, 3, 102.2
  rūkṣaṃ vayasyaṃ cakṣuṣyaṃ lekhanaṃ vātalaṃ jayet //Context