It was narrated from 'Abdullah that:
The Messenger of Allah (ﷺ) used to deliver two khutbahs standing, and he would separate them by sitting. (ES)
App reference (ES): Book 14, Hadith 53 (ES)
English reference (ES): Vol. 2, Book 14, Hadith 1417 (ES)
Arabic reference (ES): Book 14, Hadith 1427 (ES)