Sahih al-Bukhari 4956

Narrated 'Aisha:

The commencement of (the Divine Inspirations to) Allah's Apostle was in the form of true dreams. The Angel came to him and said, "Read! In the Name of your Lord Who has created all exists), has created man from a clot. Read! And your Lord is Most Generous, Who has taught (the writing) by the pen (the first person to write was Prophet Idris. (96.1-4)

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنِ الزُّهْرِيِّ، ح وَقَالَ اللَّيْثُ حَدَّثَنِي عُقَيْلٌ، قَالَ مُحَمَّدُ أَخْبَرَنِي عُرْوَةُ، عَنْ عَائِشَةَ ـ رضى الله عنها. أَوَّلُ مَا بُدِئَ بِهِ رَسُولُ اللَّهِ ﷺ الرُّؤْيَا الصَّادِقَةُ جَاءَهُ الْمَلَكُ فَقَالَ اقْرَأْ بِاسْمِ رَبِّكَ الَّذِي خَلَقَ * خَلَقَ الإِنْسَانَ مِنْ عَلَقٍ * اقْرَأْ وَرَبُّكَ الأَكْرَمُ * الَّذِي عَلَّمَ بِالْقَلَمِ