صحيح مسلم
Sahih Muslim
كتاب صلاة المسافرين وقصرها
The Book of Prayer - Travellers
باب اسْتِحْبَابِ صَلاَةِ الضُّحَى وَأَنَّ أَقَلَّهَا رَكْعَتَانِ وَأَكْمَلَهَا ثَمَانِ رَكَعَاتٍ وَأَوْسَطَهَا أَرْبَعُ رَكَعَاتٍ أَوْ سِتٌّ وَالْحَثِّ عَلَى الْمُحَافَظَةِ عَلَيْهَا:
Chapter: It is recommended to pray Duha, the least of which is two rak`ah, the best of which is eight, and the average of which is four or six, and encouragement to do so regularly
Hadith 719
This hadith is listed as number 1665 in Maktaba Shamila
وحَدَّثَنِي يَحْيَى بْنُ حَبِيبٍ الْحَارِثِيُّ ، حَدَّثَنَا خَالِدُ بْنُ الْحَارِثِ ، عَنْ سَعِيدٍ ، حَدَّثَنَا قَتَادَةُ ، أَنَّ مُعَاذَةَ الْعَدَوِيَّةَ حَدَّثَتْهُمْ ، عَنْ عَائِشَةَ ، قَالَتْ : كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ ، " يُصَلِّي الضُّحَى أَرْبَعًا ، وَيَزِيدُ مَا شَاءَ اللَّهُ " .
Mua'ada 'Adawiyya reported 'A'isha as saying: The Messenger of Allah (ﷺ) used to observe four rak'ahs in the forenoon prayer and he sometimes observed more as Allah pleased.
