Responsa for Moed Katan 6:10

(דניאל ד, טז) אשתומם כשעה חדא אמר ליה אימור כך התנו ביניהן כל הרוצה לבטל יבוא ויבטל

that the [laws of] 'Ten Saplings,'<span class="x" onmousemove="('comment',' A young plantation in a field of fifty by fifty cubits in dimension with at least ten saplings may be tilled entirely for their benefit, down to the edge of the sabbatical year which began with New Year's day, the first of Tishri. This implies that with old trees tilling must cease before New Year.');">¹⁵</span> the 'Willow'<span class="x" onmousemove="('comment',' V. infra. Willows were carried in procession once round the altar during the first six days of Tabenacles and then fixed at the side of the altar. On the seventh day the circuit was made seven times. V. Suk. 45a, where Abbahu suggests a Biblical indication, Ps. CXVIII, 27.');">¹⁶</span> and the 'Water Libation'<span class="x" onmousemove="('comment',' On the same occasions the grand celebration of the water libation took place in the Temple, a golden flagon being filled with water from Siloam, was brought amidst trumpet blasts to the Temple and poured on the altar by the High Priest.');">¹⁷</span>

Teshuvot Maharam