Sunan Abi Dawud 5078
سنن أبي داود#5078Hasanحَدَّثَنَا عَمْرُو بْنُ عُثْمَانَ، حَدَّثَنَا بَقِيَّةُ، عَنْ مُسْلِمٍ، - يَعْنِي ابْنَ زِيَادٍ - قَالَ سَمِعْتُ أَنَسَ بْنَ مَالِكٍ، يَقُولُ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ قَالَ حِينَ يُصْبِحُ اللَّهُمَّ إِنِّي أَصْبَحْتُ أُشْهِدُكَ وَأُشْهِدُ حَمَلَةَ عَرْشِكَ وَمَلاَئِكَتَكَ وَجَمِيعَ خَلْقِكَ أَنَّكَ أَنْتَ اللَّهُ لاَ إِلَهَ إِلاَّ أَنْتَ وَحْدَكَ لاَ شَرِيكَ لَكَ وَأَنَّ مُحَمَّدًا عَبْدُكَ وَرَسُولُكَ إِلاَّ غُفِرَ لَهُ مَا أَصَابَ فِي يَوْمِهِ ذَلِكَ مِنْ ذَنْبٍ وَإِنْ قَالَهَا حِينَ يُمْسِي غُفِرَ لَهُ مَا أَصَابَ تِلْكَ اللَّيْلَةَ " .
Narrated Anas ibn Malik: The Prophet (ﷺ) said: If anyone says in the morning: "O Allah! in the morning we call Thee, the bearers of Thy Throne, Thy angels, and all Thy creatures to witness that Thou art Allah than Whom there is no god, Thou being alone and without a partner, and that Muhammad is Thy servant and Thy Apostle," Allah will forgive him any sins that he commits that day; and if he repeats them in the evening. Allah will forgive him any sins he commits that night
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 43:306