Reference for Sotah 4:22

השיבו חכמים לדברי ר' יוסי בר' יהודה אין לדבר סוף מאי ניהו דזמנין דלא קני ואמר קנאי

[It was stated above:] 'The Sages replied: According to the view of R. Jose son of R. Judah, there is no purpose in the matter'. What does this mean? — There may be times when he did not warn her and he claims that he did warn her.<span class="x" onmousemove="('comment',' So what purpose is there in requiring the husband's unsupported evidence? ');">²⁰</span>

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