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