ישעיהו ד׳:ו׳
which shall serve as a pavilion for shade from heat by day and as a shelter for protection against drenching rain.
נחמיה ח׳:ט״ו
and that they must announce and proclaim throughout all their towns and Jerusalem as follows, “Go out to the mountains and bring leafy branches of olive trees, pine trees, myrtles, palms and [other] leafy-a trees to make booths, as it is written.”
משנה סוכה ב׳:ב׳
One who supports his sukka on the legs of the bed, i.e., he leans the sukka roofing on a bed, the sukka is fit. Rabbi Yehuda says: If the sukka cannot stand in and of itself without support of the bed, it is unfit. A sukka that is meduvlelet and whose shade exceeds its sunlight is fit. A sukka whose roofing is thick like a house of sorts, even though it is so thick that the stars cannot be seen from within it, is fit.
שולחן ערוך, אורח חיים תרל״א:ג׳
3. As an initial and preferred option, the s’chach should be light so that large stars to be seen through it at night. [After the fact] even if [the s’chach] was very thick, [making it seem] like [the roof of] a house and not allowing the stars to be seen, it is valid.
משנה ברורה תרל״א:ה׳
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בית יוסף, אורח חיים תרל״א:ד׳:א׳
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תוספות על סוכה ב׳ א:י״ד:א׳
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ערוך השולחן, אורח חיים תרל״א:ו׳
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פסקי הרא"ש על סוכה א׳:י״ב:א׳
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ב"ח, אורח חיים תרל״א:ה׳:א׳
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ב"ח, אורח חיים תרל״א:ו׳:א׳
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ב"ח, אורח חיים תרל״ה:ד׳:א׳
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