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:18:70 –

He said, "Then if you follow me, do not ask me about anything until I make to you about it mention."  

He said, ‘If you follow me then do not question me (lā tas’alnī, a variant reading has lā tas’alannī) concerning anything, that you might find objectionable in what I do, according to your ˹limited˺ knowledge, and be patient, until I ˹myself˺ make mention of it to you’, in other words, ˹until˺ I mention it to you with ˹an explication of˺ the reason for it. Moses accepted his precondition bearing in mind the respect which a student should exercise in the presence of a teacher.
القرآن:١٨:٧٠ –

قَالَ فَإِنِ اتَّبَعْتَنِي فَلَا تَسْأَلْنِي عَنْ شَيْءٍ حَتَّىٰ أُحْدِثَ لَكَ مِنْهُ ذِكْرًا  

{قال فإن اتبعتني فلا تسألني} وفي قراءة بفتح اللام وتشديد النون {عن شيء} تنكره مني في علمك واصبر {حتى أحدث لك منه ذكرا} أي أذكره لك بعلته، فقبل موسى شرطه رعاية لأدب المتعلم مع العالم.