Naeem bin Masud reported,

I heard the Messenger of Allah ﷺ say to the two messengers, after they had read the letter of Musaylima the Liar, "What do the two of you say?"They replied, "We say what he says."The Messenger of Allah ﷺ said, "By Allah, were it not that messengers are not to be killed, I would have struck off both your heads."

Azami 9784

Hasan

عن نعيم بن مسعود الأشجعي قال

سمعت رسول الله ﷺ يقول للرسولين حين قرأ كتاب مسيلمة الكذاب: فما تقولان أنتما؟ قالا: نقول كما قال. فقال رسول الله ﷺ: أما والله لولا أن الرسل لا تقتل لضربت أعناقكما.

الأعظمي 9784حسن
Contents
Reference
Commentary
Ayat
Collection
Jami al-Kamil
Book
Biography of the Prophet ﷺ
Chapter
Delegations to the Messenger of Allah ﷺ
Section
Delegation of Banu Hanifa, with whom was Musaylimah the Liar, and that was after the year nine
Numbering
Jami al-Kamil 9784 (2nd edition)
Azami 9784