Surah Al-Ma'arij, Ayah 4
Quran 70:4 · The Ascending Stairways · Makki · Para 29 · Page 569
تَعْرُجُ الْمَلٰٓىِٕكَةُ وَالرُّوْحُ اِلَیْهِ فِیْ یَوْمٍ كَانَ مِقْدَارُهٗ خَمْسِیْنَ اَلْفَ سَنَةٍ ۟ۚ
Transliteration
TaAAruju almala-ikatu warroohuilayhi fee yawmin kana miqdaruhu khamseena alfasana
Saheeh International
The angels and the Spirit [i.e., Gabriel] will ascend to Him during a Day the extent of which is fifty thousand years.
Al-Mukhtasar fi Tafsir
The angels and Gabriel will ascend in them ranks on the Day of Judgement: it is a day of which the duration is fifty thousand years.
Tafsir Ibn Kathir (abridged)
Explains 70:1–70:7 together — read it on 70:1