The Law Code of Nārada v13.13

Nāradasmṛti v13.13

jyeṣṭhāyāṃśo 'dhiko deyaḥ jyeṣṭhāya tu varaḥ smṛtaḥ /
samāṃśabhājaḥ śeṣāḥ syur aprattā bhaginī tathā //