Muwatta Imam Malik (Riwayat Ibn al-Qasim)

And with the same chain (it is narrated from Sayyidah Aisha, may Allah be pleased with her), she said: Whenever the Messenger of Allah, peace and blessings be upon him, was given a choice between two matters, he would choose the easier of the two, as long as it was not sinful (unlawful). But if it was a sinful matter, he would be the farthest from it. The Messenger of Allah, peace and blessings be upon him, never took revenge for himself from anyone, except when the sanctities of Allah were violated, in which case he would take revenge for the sake of Allah.