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:18:35 –

And he entered his garden while he was unjust to himself. He said, "I do not think that this will perish - ever.  

And he entered his garden, ˹taking˺ with him his companion, accompanying him all around it, showing him its fruits — God does not say ˹here˺ his ‘two gardens’, because what is meant is the beautiful ˹part of the˺ garden (rawda); or because ˹to mention just˺ one suffices — having wronged himself, through ˹his˺ disbelief. He said, ‘I do not think that ˹all˺ this will ever perish, become non-existent.
القرآن:١٨:٣٥ –

وَدَخَلَ جَنَّتَهُ وَهُوَ ظَالِمٌ لِنَفْسِهِ قَالَ مَا أَظُنُّ أَنْ تَبِيدَ هَٰذِهِ أَبَدًا  

{ودخل جنته} بصاحبه يطوف به فيها ويريه أثمارها ولم يقل جنتيه إرادة للروضة وقيل اكتفاء بالواحد {وهو ظالم لنفسه} بالكفر {قال ما أظن أن تبيد} تنعدم {هذه أبدا}.