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:57:3 –

He is the First and the Last, the Ascendant and the Intimate, and He is, of all things, Knowing.  

He is the First, preceding everything ˹but˺ without ˹His˺ having any beginning, and the Last, succeeding everything ˹but˺ without ˹His˺ having any end, and the Manifest, through the proofs for Him, and the Hidden, from the perception of the senses, and He has knowledge of all things.
القرآن:٥٧:٣ –

هُوَ الْأَوَّلُ وَالْآخِرُ وَالظَّاهِرُ وَالْبَاطِنُ ۖ وَهُوَ بِكُلِّ شَيْءٍ عَلِيمٌ  

{هو الأول} قبل كل شيء بلا بداية {والآخر} بعد كل شيء بلا نهاية {والظاهر} بالأدلة عليه {والباطن} عن إدراك الحواس {وهو بكل شيء عليم}.