مُسْنَدُ أَحْمَدَ
Musnad Ahmad 1487
Musnad Abu Ishaq Sa'd bin Abi Waqqas
It was narrated from "Umar bin Sa"d that his father said : The Messenger of Allah (ﷺ) said: “I am amazed at the decree of Allah, may He be glorified and exalted, for the believer: if something good befalls him, he praises his Lord and gives thanks, and if calamity strikes him, he praises his Lord and bears it with patience. The believer will be rewarded for everything, even the morsel he lifts to his wife"s mouth."
Musnad Ahmad 1487Sahih, because of corroborating evidence]