´Ibn Umar narrated:` "The Prophet would give a Khutbah on Friday, then sit, then stand and give (another) Khutbah." He said: "Similar to what they do today."
Hadith Referenceسنن ترمذي / كتاب الجمعة عن رسول الله صلى الله عليه وسلم / 506
Hadith Gradingالألبانی:صحيح، صحيح أبي داود (1002) ، الإرواء (604)