Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
nasai-kubra:1421 – Aḥmad b. Sulaymān > ʿUbaydullāh > Isrāʾīl > Abū Ḥaṣīn > Yaḥyá / Ibn Wathhāb > Masrūq > Saʾalt ʿĀʾishah

I asked Aisha about the night prayer of Messenger of Allah ﷺ and she said, "It was seven, nine or eleven rakʿat besides the two rakʿat of the Fajr prayer (i.e. Sunna). " (Using translation from Bukhārī 1139)  

الكبرى للنسائي:١٤٢١ – أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ قَالَ حَدَّثَنَا عُبَيْدُ اللهِ قَالَ أَخْبَرَنَا إِسْرَائِيلُ عَنْ أَبِي حَصِينٍ عَنْ يَحْيَى وَهُوَ ابْنُ وَثَّابٍ عَنْ مَسْرُوقٍ قَالَ سَأَلْتُ عَائِشَةَ

عَنْ صَلَاةِ رَسُولِ اللهِ ﷺ بِاللَّيْلِ فَقَالَتْ «سَبْعٌ وَتِسْعٌ وَإِحْدَى عَشْرَةَ سِوَى رَكْعَتَيِ الْغَدَاةِ»  

See similar narrations below:

Collected by Bukhārī, Nasāʾī's Kubrá
bukhari:1139 – Isḥāq > ʿUbaydullāh > Isrāʾīl > Abū Ḥaṣīn > Yaḥyá b. And Thhāb > Masrūq > Saʾalt ʿĀʾishah

I asked Aisha about the night prayer of Messenger of Allah ﷺ and she said, "It was seven, nine or eleven rakʿat besides the two rakʿat of the Fajr prayer (i.e. Sunna). "  

البخاري:١١٣٩ – حَدَّثَنَا إِسْحَاقُ قَالَ حَدَّثَنَا عُبَيْدُ اللَّهِ قَالَ أَخْبَرَنَا إِسْرَائِيلُ عَنْ أَبِي حَصِينٍ عَنْ يَحْيَى بْنِ وَثَّابٍ عَنْ مَسْرُوقٍ قَالَ سَأَلْتُ عَائِشَةَ ؓ

عَنْ صَلاَةِ رَسُولِ اللَّهِ ﷺ بِاللَّيْلِ فَقَالَتْ سَبْعٌ وَتِسْعٌ وَإِحْدَى عَشْرَةَ سِوَى رَكْعَتَىِ الْفَجْرِ  

nasai-kubra:425 – Aḥmad b. Sulaymān > ʿUbaydullāh b. Mūsá > Isrāʾīl > Abū Ḥuṣayn > Yaḥyá / Ibn Wathhāb > Masrūq > Saʾalt ʿĀʾishah

I asked Aisha about the night prayer of Messenger of Allah ﷺ and she said, "It was seven, nine or eleven rakʿat besides the two rakʿat of the Fajr prayer (i.e. Sunna). " (Using translation from Bukhārī 1139)   

الكبرى للنسائي:٤٢٥ – أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ قَالَ حَدَّثَنَا عُبَيْدُ اللهِ بْنُ مُوسَى قَالَ حَدَّثَنَا إِسْرَائِيلُ عَنْ أَبِي حُصَيْنٍ عَنْ يَحْيَى وَهُوَ ابْنُ وَثَّابٍ عَنْ مَسْرُوقٍ قَالَ سَأَلْتُ عَائِشَةَ

عَنْ صَلَاةِ رَسُولِ اللهِ ﷺ بِاللَّيْلِ؟ فَقَالَتْ «سَبْعٌ وَتِسْعٌ وَإِحْدَى عَشْرَةَ رَكْعَةً سِوَى رَكْعَتَيِ الْغَدَاةِ»