Halakhah for Chullin 177:2
בשלמא רצועה של תפילין כתיב
his descendants were worthy to receive two commandments: the thread of blue,<span class="x" onmousemove="('comment',' On the fringes of the garments; cf. Num. XV, 38.');"><sup>2</sup></span>
Treasures Hidden in the Sand
1. The color of the body of the Hillazon resembles the color of the sea as the Rabbis in Tractate Menachot (44A) taught that the color of the Hillazon resembles the color of the sea. Rashi explains that the Hillazon emerges from the sea and the Techelet resembles the sea, that is to say that the sea it is found in and that it emerges from is the cause of its color.
Ask RabbiBookmarkShareCopy