Sahih al-Bukhari 6625
Book 83: Oaths and Vows · Hadith 5
Hadith text
فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " وَاللَّهِ لأَنْ يَلِجَّ أَحَدُكُمْ بِيَمِينِهِ فِي أَهْلِهِ آثَمُ لَهُ عِنْدَ اللَّهِ مِنْ أَنْ يُعْطِيَ كَفَّارَتَهُ الَّتِي افْتَرَضَ اللَّهُ عَلَيْهِ ".
Allah's Messenger (ﷺ) also said:"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
Allah ke Rasool (SAW) ne ye bhi farmaaya: 'Allah ki qasam, agar tum mein se koi ek aisi qasam poori karne par zid kare jisse uske khaandaan ko nuqsaan ho, to wo Allah ke nazdeek us gunaah se bhi bada gunaah karta hai jo qasam todne aur uska kaffara adaa karne se hota hai.'
Sahih al-Bukhari 6625 · Book 83, Hadith 5