"And We made not the vision which We showed you (O Muḥammad as an actual eye-witness and not as a dream on the night of Al-Isrā') , but a trial for mankind..." (V.17:60)

Sahih al-Bukhari · Book 65 · Hadith 4716

حَدَّثَنَا عَلِيُّ بْنُ عَبْدِ اللَّهِ، حَدَّثَنَا سُفْيَانُ، عَنْ عَمْرٍو، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنه ـ ‏{‏وَمَا جَعَلْنَا الرُّؤْيَا الَّتِي أَرَيْنَاكَ إِلاَّ فِتْنَةً لِلنَّاسِ‏}‏ قَالَ هِيَ رُؤْيَا عَيْنٍ أُرِيَهَا رَسُولُ اللَّهِ صلى الله عليه وسلم لَيْلَةَ أُسْرِيَ بِهِ ‏{‏وَالشَّجَرَةَ الْمَلْعُونَةَ‏}‏ شَجَرَةُ الزَّقُّومِ‏.…

Narrated Ibn `Abbas: Regarding: 'And We granted the vision (Ascension to the Heaven "Miraj") which We showed you (O Muhammad as an actual eye witness) but as a trial for mankind.' (17.60) It was an actual eyewitness whi…