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:30:18 –

And to Him is ˹due all˺ praise throughout the heavens and the earth. And ˹exalted is He˺ at night and when you are at noon.  

And to Him belongs ˹all˺ praise in the heavens and the earth — a parenthetical statement, in other words, the inhabitants in both of these ˹realms˺ praise Him — and as the sun declines (wa-‘ashiyyan is a supplement to hīna, ‘when’ ˹of the previous verse˺), in which comes the afternoon prayer (‘asr), and when you enter noontime, in which comes the midday prayer (zuhr).
القرآن:٣٠:١٨ –

وَلَهُ الْحَمْدُ فِي السَّمَاوَاتِ وَالْأَرْضِ وَعَشِيًّا وَحِينَ تُظْهِرُونَ  

{وله الحمد في السموات والأرض} اعتراض ومعناه يحمده أهلهما {وعشيا} عطف على حين وفيه صلاة العصر {وحين تظهرون} تدخلون في الظهيرة وفيه صلاة الظهر.