(80) باب قَوْلِ النَّبِيِّ صلى الله عليه وسلم: «يَسِّرُوا وَلاَ تُعَسِّرُوا»
Narrated `Aisha:
Whenever Allah's Messenger (ﷺ) was given the choice of one of two matters he would choose the easier of the two as long as it was not sinful to do so, but if it was sinful, he would not approach it. Allah's Apostle never took revenge over anybody for his own sake but (he did) only when Allah's legal bindings were outraged, in which case he would take revenge for Allah's sake." (See Hadith No. 760. Vol. 4)
Reference: Sahih al-Bukhari 6126
In-book reference: Book 78, Hadith 153
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 8, Book 73, Hadith 147