Sunan Abi Dawud 2448
سنن أبي داود#2448Sahihحَدَّثَنَا أَحْمَدُ بْنُ حَنْبَلٍ، وَمُحَمَّدُ بْنُ عِيسَى، وَمُسَدَّدٌ، - وَالإِخْبَارُ فِي حَدِيثِ أَحْمَدَ - قَالُوا حَدَّثَنَا سُفْيَانُ قَالَ سَمِعْتُ عَمْرًا قَالَ أَخْبَرَنِي عَمْرُو بْنُ أَوْسٍ سَمِعَهُ مِنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو قَالَ قَالَ لِي رَسُولُ اللَّهِ صلى الله عليه وسلم " أَحَبُّ الصِّيَامِ إِلَى اللَّهِ تَعَالَى صِيَامُ دَاوُدَ وَأَحَبُّ الصَّلاَةِ إِلَى اللَّهِ صَلاَةُ دَاوُدَ كَانَ يَنَامُ نِصْفَهُ وَيَقُومُ ثُلُثَهُ وَيَنَامُ سُدُسَهُ وَكَانَ يُفْطِرُ يَوْمًا وَيَصُومُ يَوْمًا " .
Abd Allah b. 'And (b. al-'As) said:The Messenger of Allah (ﷺ) said to me: The fast most liked by Allah is the one observed by Dawud (David), and the prayer dearer to Allah is the one offered by Dawud (David): he would sleep half the night, and stand (in prayer) one-third of it, and sleep one-sixth of it. He would go without fasting one day, and fast the other day
Scholarly Authentication
The label above is the grade most of these scholars gave, each scholar counted once — 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. When they judged only its chain of narrators (“Isnaad”), the label says “Sound chain”. Each scholar's own wording:
Our source also lists this ruling under Muhammad Muhyi Al-Din Abdul Hamid, the editor of the printed edition it was taken from. It is al-Albani's ruling printed again, so it is counted once.
In-book reference: 14:136