Musar sur Shevi'it 10:5
פְּרוֹזְבּוּל הַמֻּקְדָּם, כָּשֵׁר, וְהַמְאֻחָר, פָּסוּל. שִׁטְרֵי חוֹב הַמֻּקְדָּמִים, פְּסוּלִים, וְהַמְאֻחָרִים, כְּשֵׁרִים. אֶחָד לֹוֶה מֵחֲמִשָּׁה, כּוֹתֵב פְּרוֹזְבּוּל לְכָל אֶחָד וְאֶחָד. חֲמִשָּׁה לֹוִין מֵאֶחָד, אֵינוֹ כוֹתֵב אֶלָּא פְּרוֹזְבּוּל אֶחָד לְכֻלָּם:
Un Pruzbul antérieur est efficace, mais un postdaté est inefficace. Les documents de prêt antérieurs sont inefficaces, mais les documents postdatés le sont. Si l'on emprunte à cinq personnes différentes, un Pruzbul doit être rédigé pour chacun [des prêteurs] individuellement. Si cinq empruntent à une personne, un seul Pruzbul peut être écrit pour tous.
Orchot Tzadikim
The eighth category of falsehood is he who boasts of qualities that he does not possess. And this is a great sin. And even if he really possesses these qualities when he praises himself it appears from his words that he did not do his charitable or generous acts for the sake of Heaven, but for his own sake, for his own praise. And our Sages, of blessed memory, said, "He whom others honor because they believe that he knows two tractates of the Talmud, and he knows only one tractate, is obligated to say, 'I know only one tractate' " (T.P. Shebi'ith 10:5). All the more so is it forbidden to lie and to boast about qualities that one does not possess at all.
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