שְׁאֵרִ֨ית יִשְׂרָאֵ֜ל לֹֽא־יַעֲשׂ֤וּ עַוְלָה֙ וְלֹא־יְדַבְּר֣וּ כָזָ֔ב וְלֹֽא־יִמָּצֵ֥א בְּפִיהֶ֖ם לְשׁ֣וֹן תַּרְמִ֑ית כִּֽי־הֵ֛מָּה יִרְע֥וּ וְרָבְצ֖וּ וְאֵ֥ין מַחֲרִֽיד׃ (ס)
The remnant of Israel shall not do iniquity, Nor speak lies, Neither shall a deceitful tongue be found in their mouth; For they shall feed and lie down, And none shall make them afraid.
Mishnah Pesachim
[As to] an onen, and one who is removing a heap [of stones], and likewise one whom they promised to take out of prison, and a sick or an old person who can eat as much as an olive, they slaughter on their behalf. [Yet in the case of] all these, they may not slaughter for them alone, lest they bring the pesah to disqualification. Therefore if a disqualification occurs to them, they are exempt from keeping the second pesah, except for one who was removing the heap, because he was unclean from the beginning.