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:27:21 –

I will surely punish him with a severe punishment or slaughter him unless he brings me clear authorization."  

He said, ‘Assuredly I will chastise him with a severe chastisement, by having ˹all˺ his feathers as well as his tail plucked and leaving him out in the sun, where he would not be able to escape from reptiles, or I will slaughter him, by slitting his throat, unless he brings me (read la-ya’tiyannī or la-ya’tinannī) a clear warrant’, plain manifest proof for his ˹having a valid˺ excuse.
القرآن:٢٧:٢١ –

لَأُعَذِّبَنَّهُ عَذَابًا شَدِيدًا أَوْ لَأَذْبَحَنَّهُ أَوْ لَيَأْتِيَنِّي بِسُلْطَانٍ مُبِينٍ  

قال {لأعذبنه عذاباً} تعذيباً {شديداً} بنتف ريشه وذنبه ورميه في الشمس فلا يمتنع من الهوام {أو لأذبحنه} بقطع حلقومه {أو ليأتيني} بنون مشددة مكسورة أو مفتوحة يليها نون مكسورة {بسلطان مبين} ببرهان بين ظاهر على عذره.