Surah As-Saffat 37:102

فَلَمَّا بَلَغَ مَعَهُ ٱلسَّعْىَ قَالَ يَـٰبُنَىَّ إِنِّىٓ أَرَىٰ فِى ٱلْمَنَامِ أَنِّىٓ أَذْبَحُكَ فَٱنظُرْ مَاذَا تَرَىٰ ۚ قَالَ يَـٰٓأَبَتِ ٱفْعَلْ مَا تُؤْمَرُ ۖ سَتَجِدُنِىٓ إِن شَآءَ ٱللَّهُ مِنَ ٱلصَّـٰبِرِينَ

And when he reached with him [the age of] exertion, he said, "O my son, indeed I have seen in a dream that I [must] sacrifice you, so see what you think." He said, "O my father, do as you are commanded. You will find me, if Allāh wills, of the steadfast."

Translation: Saheeh International

Tafsir

And when he was old enough to walk with him that is to go about with him and help him out — this is said to have been either at the age of seven or at the age of thirteen — he said ‘O my dear son I see that is I have seen in a dream that I shall sacrifice you — and the visions of prophets are always true and their …

Excerpt from Tafsir al-Jalalayn, commentary on 37:102, via Quran.com. The reader has the full commentary and 9 more tafsirs.