question #1 Sahih al-Bukhari 6625, Book 83, Hadith 5 : What is the significance of fulfilling oaths in Islam, and when might it be permissible to dissolve an oath?

“By Allah, if anyone of you insists on fulfilling an oath by
which he may harm his family, he commits a greater sin in Allah’s sight than that of dissolving his
oath and making expiation for it.”