يَا مَنْ رَفَعَ السَّماواتِ [السَّمَاءِ] بِغَيْرِ…
Source: Source: duas.org · ramadan-day-21
O Allah, O He who raised the heavens without any pillars that you can see, then established Himself upon the Throne, managing the affair, there is no intercessor except after His permission. O He who knows what every female carries and what the wombs decrease and increase, and everything with Him is measured, the Knower of the unseen and the seen, the Great, the Most High. O He for whom the thunder glorifies with His praise, and so do the angels out of fear of Him. O He by whose remembrance hearts find peace. O He who erases what He wills and establishes, and with Him is the Mother of the Book.
Reference / Source
Source: duas.org · ramadan-day-21