Hadith 11:245
19547. Ubaydullah narrated to us, Israel narrated to us, from Abu Ishaq, from Sa’d ibn Iyad, who said: The Messenger of Allah (may Allah bless him and grant him peace) was of little speech and little talk. But when he was commanded to fight, he girded himself, and he was among the most intense of people in might.
حدثنا عبيد الله نا إسرائيل عن أبي إسحاق عن سعد بن عياض قال كان رسول الله صلى الله عليه وسلم قليل الكلام قليل الحديث فلما أمر بالقتال شمر فكان من أشد الناس بأسا