4 chains merged

I saw the Messenger of Allah (ﷺ) praying and a sound came from his breast like the rumbling of a mill owing to weeping.

"I came to the Prophet (ﷺ) when he was praying, and there was a sound coming from his chest like the sound of water boiling," meaning, he was weeping.

I came to Messenger of Allah (ﷺ) when he was performing prayers. He was sobbing and his chest sounded like a boiling kettle. <b>[Abu Dawud and At-Tirmidhi]</b>.

"I came to Allah’s Messenger (ﷺ) while he was performing the ritual prayer, and his inner body [jauf] was producing a humming sound like the humming of the cauldron due to his weeping.”