Kautilya's Arthashastra 3.6.22

3.6.22

brāhmaṇānāṃ tu pāraśavas tṛtīyam aṃśaṃ labheta, dvāv aṃśau sapiṇḍaḥ kulyo vāsannaḥ, svadhādānahetoḥ //

An Anantara son of a Bráhman, i.e. a son begotten by a Bráhman on a woman of next lower caste, shall, if endowed with manly or superior qualities (mánushopetah), take an equal share (with other sons of inferior qualities); similarly Anantara sons of Kshatriya or Vaisya fathers shall if endowed with manly or superior qualities, take half or equal shares (with others). An only son to two mothers of different castes shall take possession of the whole property and maintain the relatives of his father. A Palrasava son begotten by a Bráhman on a Súdra woman, shall take 1/3rd share; a sapinda, (an agnate) or a kulya (the nearest cognate), of the Bráhman shall take the remaining two shares, being thereby obliged to offer funeral libation; in the absence of agnates or cognates, the deceased father's teacher or student shall take the two shares.