Sha'bi said:
When 'Adi bin Hatim came to Kufah, we came to him with a delegation of the Fuqaha of Kufah and said to him: 'Tell us of something that you heard from the Messenger of Allah (ﷺ).' He said: 'I came to the Prophet (ﷺ) and he said: O 'Adi bin Hatim, enter Islam and you will be safe. I said, What is Islam? He said: To testify to La ilaha illallah (none has the right to be worshipped but Allah) and that I am the Messenger of Allah, and to believe in all the Divine Decrees, the good of them and the bad of them, the sweet of them and the bitter of them.