Explanation of the meaning of the verse "Every day He is upon some matter"

It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) concerning the saying of Allah, the Mighty and Majestic: "Every day He is in a (new) matter" [Surah al-Rahman: 29], that he said: "Allah Almighty has created a Preserved Tablet (al-Lawh al-Mahfuz) from a white pearl, its two covers are of red ruby, its pen is light and its writing is also light. Allah Almighty looks into it three hundred and sixty times every day, and with each look He creates, provides sustenance, gives life, causes death, grants honour, humiliates, and does whatever He wills. So this is the saying of Allah: 'Every day He is in a (new) matter.'"
This hadith has a sahih (authentic) chain of narration, but the two Shaykhs did not record it.

It is narrated from Sayyiduna Abu Musa al-Ash'ari (may Allah be pleased with him) concerning the saying of Allah Almighty: "And for the one who fears standing before his Lord there will be two gardens" [Surah al-Rahman: 46], that he said: "There will be two gardens of gold for the foremost (those who race ahead in good deeds), and two gardens of silver for the followers (those who come after them)."

It is narrated from Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) concerning the saying of Allah, the Mighty and Majestic: "whose linings are of thick brocade" [Surah al-Rahman: 54], that he said: "You have been told about their linings (the inner layers); so just think what the state of their outer sides (the visible silk) will be!"
This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), but they did not record it.