جامع الترمذي

Narrated Ibn 'Abbas: "The Jews came to the Prophet (ﷺ) and said: 'O Abul-Qasim! Inform us about the thunder, what is it?' He said: 'An angel among the angels, who is responsible for the clouds. He has a piece of fire wherever that he drives the clouds wherever Allah wills.' They said: 'Then what is this noise we hear?' He said: 'It is him, striking the clouds when he drives them on, until it goes where it is ordered.' They said: 'You have told the truth.' They said: 'Then inform us about what Isra'il made unlawful for himself.' He said: 'He suffered from sciatica, and he could not find anything agreeable due to it (to consume) except for camel meat and its milk. So for that reason he made it unlawful.' They said: 'You have told the truth.'"