Matsyapurana 16.17

16.17

varjayelliṅginaḥ sarvāñ śrāddhakāle viśeṣataḥ
pūrvedyuraparedyurvā vinītātmā nimantrayet //

The fallen, the cursed, eunuchs, backbiters, those deformed by disease, those having deformed nails, those having yellow teeth, bastards, bastards of widows, horse-tamers, offspring of a younger brother married before an elder brother, those who offer themselves for service, those addicted to drunkenness, mad men, the hard-hearted, cheats, swindlers, the conceited, temple priests, the ungrateful, the atheist, inhabitants of a Mlechha country (Non-aryans), Triśaṅkus, of Barbara, and of Dravavîta, Draviḍa, of Koṅkana, and the Liṅgis (having prominent sectarian marks), should, under no circumstances, be invited to śrâddha feast.—14-17.

The guests to the Śrâddha feast should be courteously invited the same day or a day previous to the feast. The Pitṛis accompany the invited twice-born, in the form of air, and sit along with them at the time of the feast. The host should go and invite his twice-born guest by touching his right knee and address him thus "thou hast been invited by me, accept my invitation." After thus addressing, he should remind the guest as well as his paternal kinsmen in these words:—"You should be without anger, observe purity and rules of continence the whole of this day, and I the performer of Śrâddha would also observe the same along with you."—18-20.