Al-Matalib al-'Aliyah 4310 — The Battle of Hunain

It is narrated from Sayyiduna Yazid bin Amir al-Suwa'i (may Allah be pleased with him), who took part in the Battle of Hunayn on the side of the polytheists and later accepted Islam. We used to ask him about the terror that Allah Almighty had cast into the hearts of the polytheists on the day of Hunayn, what it was like. He said: "We would pick up a pebble and throw it into a basin (a large bowl) full of water, and it would ring." He added: "We used to feel exactly this kind of ringing and trembling inside our bellies."
The chain of this hadith is hasan (good), and Imam Ahmad and Imam al-Bazzar recorded it.