The Messenger of Allah (ﷺ) was given seven repeated long surahs, while Moses was given six, When he threw the tablets, two of them were withdrawn and four remained.
Sunan Abi Dawud Book 8, Hadith 44
← Previous Hadith I prayed ant then I came to him. He asked: What prevented you from answering me ? He replied: I was praying. He said: Has not Allah said: "O you who believe, respond to Allah and the Apostle when he calls you to that which gives you life ? (8:24) Let me teach you the greatest surah from the Qur'an or in the Qur'an (the narrator Khalid doubted) before I leave the mosque. I said: (I shall memorize) your saying. He said: It is: "Praise be to Allah, the Lord of the Universe" which is the seven oft-repeated verses, and the mighty Qur'an.

Sunan Abi Dawud Book 8, Hadith 43 Next Hadith → The Messenger of Allah (ﷺ) said: Abu al-Mundhir, which verse of Allah's Book that you have is creates ? I replied: Allah and His Apostle know best. He said: Abu al-Mundhir, which verse of Allah's that you have is greatest ? I said: Allah, there is no god but He, the Living, the Eternal. Thereupon he struck me on the beast and said: May knowledge be pleasant for you, Abu al-Mundhir.

Sunan Abi Dawud Book 8, Hadith 45