Reference for Pesachim 198:1
מתני׳ <big><strong>ערב</strong></big> פסחים סמוך למנחה לא יאכל אדם עד שתחשך אפילו עני שבישראל לא יאכל עד שיסב ולא יפחתו לו מארבע כוסות של יין ואפילו מן התמחוי:
ON THE EVE OF PASSOVER<span class="x" onmousemove="('comment',' Lit., 'on the eve of Passovers'. Tosaf. suggests that this may mean either on the eve when Passover-offerings are sacrificed, or on the eve of the first and second Passovers. But there is a variant reading ON THE EVES OF PASSOVER, the whole being in the plural; its meaning will then be on the eve of (every) Passover, as translated in the text, Heb. often using the plural in this way.');"><sup>1</sup></span> CLOSE TO MINHAH<span class="x" onmousemove="('comment',' V. Glos.; i.e., from just before minhah.');"><sup>2</sup></span>