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:7:40 –

Indeed, those who deny Our verses and are arrogant toward them - the gates of Heaven will not be opened for them, nor will they enter Paradise until a camel enters into the eye of a needle. And thus do We recompense the criminals.  

Those who deny Our signs and scorn them, not believing in them, indeed the gates of heaven shall not be opened for them, when their spirits are carried up to it after death, for instead they are taken down into Sijjīn ˹cf. Q. 83:7f.˺ — in contrast to the believer, for whom the gates are opened, and his spirit is carried up into the seventh heaven, as is stated in one hadīth — nor shall they enter Paradise until the camel passes through the eye of the needle, which is impossible, and so is their entry ˹into Paradise˺. So, with this requital, We requite those who are sinful, through disbelief.
القرآن:٧:٤٠ –

إِنَّ الَّذِينَ كَذَّبُوا بِآيَاتِنَا وَاسْتَكْبَرُوا عَنْهَا لَا تُفَتَّحُ لَهُمْ أَبْوَابُ السَّمَاءِ وَلَا يَدْخُلُونَ الْجَنَّةَ حَتَّىٰ يَلِجَ الْجَمَلُ فِي سَمِّ الْخِيَاطِ ۚ وَكَذَٰلِكَ نَجْزِي الْمُجْرِمِينَ  

{إن الذين كذبوا بآياتنا واستكبروا} تكبروا {عنها} فلم يؤمنوا بها {لا تفتَّح لهم أبواب السماء} إذا عرج بأرواحهم إليها بعد الموت فيهبط بها إلى سجين بخلاف المؤمن فتفتح له ويصعد بروحه إلى السماء السابعة كما ورد في حديث {ولا يدخلون الجنة حتى يلج} يدخل {الجمل في سمِّ الخياط} ثقب الإبرة وهو غير ممكن فكذا دخولهم {وكذلك} الجزاء {نجزي المجرمين} بالكفر.