مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2052
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn 'Abbas said: The Messenger of Allah (ﷺ) did not fight any people until he called them [to Islam first].
Musnad Ahmad 2053A saheeh hadeeth]