Explanation

Ibn Mas‘ūd (may Allah be pleased with him) tells us that a man from the Jewish scholars came to the Prophet (may Allah's peace and blessings be upon him) and informed him that they find in their scriptures that on the Day of Judgment Allah, the Almighty, will put the heavens on one finger, the earths on one finger, the trees on one finger, the dust on one finger, and – according to one narration – the water on one finger, and all other created things on one of His fingers, which are five, as related in authentic narrations, but are not like the fingers of creatures. Then, revealing some of His power and grandeur, Allah, the Almighty, will shake all of them and proclaim His real dominion, absolute control, and true divinity. In confirmation of the statement made by the learned man, the Prophet (may Allah's peace and blessings be upon him) laughed so hard that his premolars were visible and he then recited: {They have not appraised Allah with true appraisal, while the earth entirely will be [within] His grip on the Day of Judgment.} [Sūrat Az-Zumar: 67]