As for the second report, its flaw is that it is a mursal narration from Ibn Shihab, and a mursal chain is not considered proof by the majority of scholars.
Furthermore, both hadiths contain a phrase that the Prophet ﷺ explicitly forbade, namely his words in them: “and whoever disobeys them….”
Muslim and others transmit from ʿAdī b. Ḥātim that a man once preached in the Prophet’s presence and said, “Whoever obeys Allah and His Messenger has been rightly guided, and whoever disobeys them has gone astray.” The Prophet ﷺ said, “What a poor preacher you are! Say instead: ‘and whoever disobeys Allah and His Messenger.’”
The report of Ibn Masʿūd is also found through three additional chains, none of which contain this phrase, which shows that it is an aberrant addition. I have explained this in a brief treatise entitled “The Khutbat al-Ḥājah that the Messenger of Allah ﷺ used to teach his Companions.” In it I present the complete, sound text of this blessed sermon, document its chains, and include other relevant benefits; it has been printed several times, praise be to Allah.
Regarding his statement on the recommendation to raise one’s voice during the sermon, to shorten it, and to give it due attention: “Jābir b. Samurah (may Allah be pleased with him) said, ‘The prayer of the Messenger ﷺ was moderate and his sermon was moderate.’ Narrated by all the compilers except al-Bukhārī and Abū Dāwūd.”
I say: Excluding Abū Dāwūd is a mistake that the author of al-Muntaqā merely copied, and al-Shawkānī (3/228) did not note it. Abū Dāwūd actually recorded it in his Sunan, no. 1101, and it is authenticated in Ṣaḥīḥ Abī Dāwūd, no. 1009.
Under the heading “The imam interrupting the sermon because of an unforeseen occurrence,” he cites: “Abū Buraydah (may Allah be pleased with him) said: ‘The Messenger of Allah ﷺ was preaching to us when al-Ḥasan and al-Ḥusayn came wearing two red shirts….’ Narrated by the Five.”
I say: Concerning it there are