Skandapurana 6.3.85.71

6.3.85.71

vrate śrāddhe tathā dāne dūratastān vivarjayet .
āyasī taruṇī tulyā dvijāḥ svādhyāyavarjitāḥ .. 85.71 ..

In a vow, in a śrāddha, and in gift-giving, one should avoid them from afar. / Twice-born men devoid of Vedic study are like an iron boat;