Kautilya's Arthashastra 3.5.18

3.5.18

pitur asaty arthe jyeṣṭhāḥ kaniṣṭhān anugṛhṇīyuḥ, anyatra mithyāvṛttebhyaḥ //

A father, distributing his property while he is alive, shall make no distinction in dividing it among his sons. Nor shall a father deprive without sufficient reason any of the sons of his share. Father being dead, the elder sons shall show favour to the younger ones, if the latter are not of bad character.