Reference for Yevamot 7:4

ואמר רב יוסף אפילו למאן דלא דריש סמוכים בעלמא במשנה תורה דריש דהא ר' יהודה בעלמא לא דריש ובמשנה תורה דריש

for ever and ever, they are done in truth and uprightness.'<span class="x" onmousemove="('comment',' Ps. CXI, 8. The proximity of the two texts (Deut. XXII, 11 and 12) may consequently be taken to indicate that though the wearing of mingled stuff (linen and wool) is forbidden in ordinary cases (Deut. XXII, 11) it is nevertheless permitted in the case of the performance of a positive precept such as that of the making of 'twisted cords' or zizith (v. Glos.) on the four corners of a garment (ibid. v. 12). ');">⁷</span> Furthermore, R. Shesheth stated<span class="x" onmousemove="('comment',' Mak. 23a. ');">⁸</span>

Jastrow

Jastrow

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