Sources include:Pesach paper by Y. Levenstein "join us for the seder" from the Boro Park View March 24, 2021 editionTorah Lodaas by Rav Matis Blum ztl Pesach editionthe question & answer of toras Avigdor Tsav - Pesach Edition Year 4 Issue 27 about the korban PesachOriginally was uploaded in YouTube April 1, 2021