Hadith 31-102

وَبِهذَا الإِسنادِ قالَ: قالَ رَسُولُ اللَّهِ صَلَّى اللهُ عَلَيْهِ وَآلِهِ: مَن قَرَأَ [سُورَة] (إِذا زُلزِلَتِ الأَرْض) أَربَعَ مَرَّاتٍ، كانَ كَمَنْ قَرَأَ الْقُرْآنَ كُلَّهُ.

According to the same documentation, God’s Prophet (S) said, “Whoever recites the Chapter (of the Qur’an) starting with ‘When the earth is shaken to her (utmost) convulsion…’ four times, it is as if he has recited the whole Qur’an.”