(236) باب الاِحْتِبَاءِ وَالإِمَامُ يَخْطُبُ
Narrated Anas ibn Malik:
The Messenger of Allah (ﷺ) prohibited to sit on hips by erecting feet, sticking them to the stomach and holding them with hands on Friday while the imam is delivering the sermon.
Reference: Sunan Abi Dawud 1110
In-book reference: Book 2, Hadith 721
English translation: Book 3, Hadith 1105