Surah Qaf 50:1 — translation and meaning

Qāf. The discussion on similar letters has already passed in Sūrah Al-Baqarah. Allah takes an oath on the noble Qur’ān because of the meanings, abundant goodness and blessings it contains. He takes an oath on that you shall surely be resurrected on the Day of Judgement for accountability and requital.

Source: Al-Mukhtasar Tafsir — Tafsir Center for Quranic Studies.