Musnad Ahmad 2744

Ibn ‘Abbas (ﷺ) said: I was seated behind the Prophet (ﷺ) on his mount and he said to me: "O boy, I will teach you some words: be mindful of Allah and Allah will take care of you; be mindful of Allah and you will find Him in front of you; if you ask, ask of Allah, and if you seek help, seek help from Allah. The pens have been lifted and the pages have dried. If the nation wanted to benefit you with anything that Allah has not decreed for you, they would never be able to do that, and if they wanted to harm you with anything that Allah has not decreed for you, they would never be able to do it.