Ateret Zekenim on Shulchan Arukh, Orach Chayim Siman 625
Can copy this into an AI, or connect the whole library to your assistant. For deeper learning, you can directly use the original seforim, sites, and apps.
ומצוה לתקן הסוכה מיד אחר י"כ ואפי' אם הוא ערב שבת: