It was narrated from Abu Sa'eed Al-Khudri that the Messenger of Allah (ﷺ) said:
O Abu Sa'eed! Whoever is content with Allah as Lord, Islam as his religion and Muhammad as Prophet, then he is guaranteed Paradise. Abu Sa'eed found this amazing and said: Say it to me again, O Messenger of Allah. So he did that, then the Messenger of Allah (ﷺ) said: And there is something else by means of which a person may be raised one hundred degrees in Paradise, each of which is like that which is between the Heaven and the Earth. He said: What is it, O Messenger of Allah? He said: Jihad in the cause of Allah, Jihad in the cause of Allah.