The Letter Reb Dovid Luria Sent To His Rebbe
Rabbi Mendel Krasnjanski
Source Sheet How were we Zoche to the mitzva of Tzitzis/Tcheles? Why is it so important who brought the Zechus? Is Techeles Me'akev? How many strings need to be Techeles? Why would the Talis have to be nice? Should one decorate a shofar? History and stories of R' Dovid Luria