Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
muslim:863b – Abū Bakr b. Abū Shaybah > ʿAbdullāh b. Idrīs > Ḥuṣayn Bihadhā al-Isnād

This hadith has been narrated by Husain with the same chain of transmitters but with this alteration that he did not make mention of the standing position.  

مسلم:٨٦٣b – وَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ عَنْ حُصَيْنٍ بِهَذَا الإِسْنَادِ قَالَ

وَرَسُولُ اللَّهِ ﷺ يَخْطُبُ وَلَمْ يَقُلْ قَائِمًا  

See similar narrations below:

Collected by Aḥmad, Ṭabarānī
ahmad:20947 – ʿAbdullāh > ʿUthmān b. Muḥammad b. Abū Shaybah > ʿUmar b. ʿUbayd al-Ṭanāfisī > Simāk > Jābir b. Samurah

[Machine] The Messenger of Allah ﷺ was never seen giving a sermon while sitting, but always standing.  

أحمد:٢٠٩٤٧ – حَدَّثَنَا عَبْدُ اللهِ حَدَّثَنِي عُثْمَانُ بْنُ مُحَمَّدِ بْنِ أَبِي شَيْبَةَ حَدَّثَنَا عُمَرُ بْنُ عُبَيْدٍ الطَّنَافِسِيُّ عَنْ سِمَاكٍ عَنْ جَابِرِ بْنِ سَمُرَةَ قَالَ

مَا رُئِيَ رَسُولُ اللهِ ﷺ يَخْطُبُ إِلَّا قَائِمًا  

tabarani:2042 – ʿUbayd b. Ghannām > Abū Bakr b. Abū Shaybah > ʿUmar b. ʿUbayd > Simāk b. Ḥarb > Jābir b. Samurah

[Machine] "The Messenger of Allah ﷺ was never seen delivering a sermon except while standing up."  

الطبراني:٢٠٤٢ – حَدَّثَنَا عُبَيْدُ بْنُ غَنَّامٍ ثنا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ ثنا عُمَرُ بْنُ عُبَيْدٍ عَنْ سِمَاكِ بْنِ حَرْبٍ عَنْ جَابِرِ بْنِ سَمُرَةَ قَالَ

«مَا رُؤِيَ رَسُولُ اللهِ ﷺ يَخْطُبُ إِلَّا قَائِمًا»