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:56:87 –

Bring it back, if you should be truthful?  

do you not bring it back, ˹why˺ do you not restore the spirit to the body after it has reached the throat, if you are truthful?, in what you claim (the second law-lā, ‘why … if’, is ˹repeated˺ to emphasise the first one; idhā, ‘when’, is an adverbial particle qualifying tarji‘ūna, ‘bring it back’, to which both conditions are semantically connected). The meaning is: ‘Why do you not bring it back, when, in repudiating resurrection, you are being truthful in this repudiation?’ That is to say, ‘Let death also be repudiated ˹as impossible˺ in its case just as ˹you claim that˺ resurrection is ˹impossible˺’.
القرآن:٥٦:٨٧ –

تَرْجِعُونَهَا إِنْ كُنْتُمْ صَادِقِينَ  

{ترجعونها} تردون الروح إلى الجسد بعد بلوغ الحلقوم {إن كنتم صادقين} فيما زعمتم فلولا الثانية تأكيد للأولى وإذا ظرف لترجعون المتعلق به الشرطان والمعنى: هلا ترجعونها إن نفيتم البعث صادقين في نفيه، أي لينتفي عن محلها الموت كالبعث.