"Lema'an Da'at", pamphlet published by R. Yaakov Emden, the Yaavetz, containing copies of letters and evidence against the Sabbateans, with sharp statements against R. Jonathan Eybeschutz. [Amsterdam?, 1753]. Hebrew and Yiddish.
Three page pamphlet. The beginning consists of a letter against Sabbateans from 1726 by R. Moshe Chagiz, who writes regarding "the occurrences in the Ashkenazic countries with the resurgence of the viper (a reference to Nehemiah Hayyun, follower of Sabbatai Zevi), may his name be blotted out". The letter also contains sharply worded criticisms of R. Jonathan Eybeschutz. The end of the letter contains a copy of "the announcement from Altona, 1725", containing a ban (Cherem) against the Sabbateans, and a letter by R. Jonathan Eybeschutz ostensibly testifying to his ties with Sabbateanism. The pamphlet also includes a copy of evidence given in the Beit Din in Mannheim in 1725, with names of those suspected of Sabbateanism (R. Yeshaya Mochiach and others), including R. Jonathan Eybeschutz. The evidence contains the declaration of the Beit Din of Worms in 1753 attesting to their careful copying of the evidence. This pamphlet was seemingly published by R. Yaakov Emden during the course of his campaign against R. Jonathan Eybeschutz, whom he suspected of clandestine Sabbateanism.
[3] pages. 21-21.5 cm. Good-fair condition. Repaired damage.
The location of printing is unknown. It may have been printed in Germany or Holland, and there are those who assume that it was printed in Amsterdam. See Ginzei Yisrael 1716.