Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:4:156 –

And ˹We cursed them˺ for their disbelief and their saying against Mary a great slander,  

And for their disbelief, a second time, in Jesus (the bā’ ˹of bi-kufrihim, ‘for their disbelief’˺ is repeated in order to separate it ˹‘their disbelief’ in Jesus˺ from what is supplemented to it ˹‘their utterance against Mary’˺) and their uttering against Mary a tremendous calumny, when they accused her of fornication.
القرآن:٤:١٥٦ –

وَبِكُفْرِهِمْ وَقَوْلِهِمْ عَلَىٰ مَرْيَمَ بُهْتَانًا عَظِيمًا  

{وبكفرهم} ثانيا بعيسى وكرر الباء للفصل بينه وبين ما عطف عليه {وقولهم على مريم بهتانا عظيما} حيث رموها بالزنا.