Skandapurana 5.216.4

5.216.4

svakarmopārjitairvittaiḥ śrāddhakāryāṇi cāharet ..
māyādibhirna cauryeṇa na cchalāptairna vaṃcanaiḥ..
svavṛttyopārjitairvittaiḥ śrāddhadravyaṃ samāharet..
supratigrahajairdravyairbrāhmaṇānāṃ viśiṣyate..4..

One should procure the items for the śrāddha with wealth earned by one's own labor, / not by deceit or other [wicked means], not by theft, not through fraud, and not by cheating. / One should gather the material for the śrāddha with wealth earned by one's own livelihood; / for brahmins, [wealth] derived from worthy gifts is superior.