Musnad Ahmad 306:0

Narrated Abu Salamah ibn Abd al-Asad: The Messenger of Allah (ﷺ) said: "No person is afflicted with a calamity, then says what Allah has commanded him: 'Indeed, we belong to Allah and to Him we shall return. O Allah, reward me in my affliction and replace it for me with something better than it,' except that Allah replaces it for him with something better than it." He said: When Abu Salamah died, I said: "Who among the Muslims is better than Abu Salamah? The first household to migrate to the Messenger of Allah (ﷺ)." Then I said it, so Allah replaced him for me with the Messenger of Allah (ﷺ).