Narasimhapurana 58.23

58.23

sāyaṃ prātaś cared bhaikṣaṃ bhojanaṃ saṃyatendriyaḥ
guroḥ kule na bhikṣeta na jñātikulabandhuṣu //

Controlling his senses, he should go about begging for food evening and morning; / he should not beg in the family of his guru, nor among his kinsmen and relatives;