Virtue of reciting just 4 phrases (سُبْحَانَ اللَّهِ وَبِحَمْدِهِ عَدَدَ خَلْقِهِ وَرِضَا نَفْسِهِ وَزِنَةَ عَرْشِهِ وَمِدَادَ كَلِمَاتِهِ) in the morning three (03) times after Fajr
Narrated Abdullah Ibn Abbas:
The Messenger of Allah (ﷺ) went out from Juwayriyyah (wife of the Prophet). Earlier her name was Barrah, and he changed it. When he went out she was in her place of worship, and when he returned she was in her place of worship.
He asked: Have you been in your place of worship continuously? She said: Yes. He then said: Since leaving you I have said three times four phrases which, if weighed against all that you have said (during this period), would prove to be heavier: "glory be to Allah", and I begin with praise of Him to the number of His creatures, in accordance with His good pleasure, to the weight of His throne and to the ink (extent) of His words.
حَدَّثَنَا دَاوُدُ بْنُ أُمَيَّةَ، حَدَّثَنَا سُفْيَانُ بْنُ عُيَيْنَةَ، عَنْ مُحَمَّدِ بْنِ عَبْدِ الرَّحْمَنِ، مَوْلَى أَبِي طَلْحَةَ عَنْ كُرَيْبٍ، عَنِ ابْنِ عَبَّاسٍ، قَالَ خَرَجَ رَسُولُ اللَّهِ صلى الله عليه وسلم مِنْ عِنْدِ جُوَيْرِيَةَ - وَكَانَ اسْمُهَا بَرَّةَ فَحَوَّلَ اسْمَهَا - فَخَرَجَ وَهِيَ فِي مُصَلاَّهَا وَرَجَعَ وَهِيَ فِي مُصَلاَّهَا فَقَالَ " لَمْ تَزَالِي فِي مُصَلاَّكِ هَذَا " . قَالَتْ نَعَمْ . قَالَ " قَدْ قُلْتُ بَعْدَكِ أَرْبَعَ كَلِمَاتٍ ثَلاَثَ مَرَّاتٍ لَوْ وُزِنَتْ بِمَا قُلْتِ لَوَزَنَتْهُنَّ سُبْحَانَ اللَّهِ وَبِحَمْدِهِ عَدَدَ خَلْقِهِ وَرِضَا نَفْسِهِ وَزِنَةَ عَرْشِهِ وَمِدَادَ كَلِمَاتِهِ " .
Grade: Sahih (Al-Albani)
Reference : Sunan Abi Dawud 1503
In-book reference : Book 8, Hadith 88
English translation : Book 8, Hadith 1498
http://sunnah.com/abudawud/8/88
The story behind this hadith is that one morning, Prophet Muhammad (ﷺ) departed his home. His wife, Juwairiyah bint Al-Harith - May Allah be pleased with her, prayed Fajr at home. When he returned after sunrise, he found Juwairiyah (may Allah be pleased with her) still sitting in the exact location as she was when he left her. She was making dhikr of Allah. Upon learning this, Rasool Allah (ﷺ) taught her 4 phrases of dhikr that he made upon leaving their home. These phrases were more better than all of the dhikr that she had made that whole morning.
سبحان الله وبحمده عدد خلقه، ورضا نفسه، وزنة عرشه، ومداد كلماته
Transliteration: Subhan-Allahi wa bihamdihi, `adada khalqihi, wa rida nafsihi, wa zinatah `arshihi, wa midada kalimatihi.
Translation: Allah is free from imperfection and I begin with His praise, as many times as the number of His creatures, in accordance with His Good Pleasure, equal to the weight of His Throne and equal to the ink that may be used in recording the words (for His Praise).