It was narrated that Jabir bin Samurah said:
"I sat with the Prophet (ﷺ) and I did not see him deliver the khutbah except standing, and he sat, then he stood up and delivered the second khutbah." (JA)
App reference (JA): Book 14, Hadith 52 (JA)
English reference (JA): Vol. 2, Book 14, Hadith 1416 (JA)
Arabic reference (JA): Book 14, Hadith 1426 (JA)