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:2501 – Isḥāq b. Ibrāhīm > Muʿādh b. Hishām from my father > Yaḥyá b. Abū Kathīr > Abū Salamah b. ʿAbd al-Raḥman > ʿĀʾishah

"The Messenger of Allah did not fast in any month of the year more than he did in Shaban. He used to fast all of Shaban." (Using translation from Nasāʾī 2180)  

الكبرى للنسائي:٢٥٠١ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَخْبَرَنَا مُعَاذُ بْنُ هِشَامٍ قَالَ حَدَّثَنِي أَبِي عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ قَالَ حَدَّثَنَا أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ عَنْ عَائِشَةَ قَالَتْ

«لَمْ يَكُنْ رَسُولُ اللهِ ﷺ فِي شَهْرٍ مِنَ السَّنَةِ أَكْثَرَ صِيَامًا مِنْهُ فِي شَعْبَانَ كَانَ يَصُومُ شَعْبَانَ كُلَّهُ»  

See similar narrations below:

Collected by Nasāʾī
nasai:2180 – Isḥāq b. Ibrāhīm > Muʿādh b. Hishām from my father > Yaḥyá b. Abū Kathīr > Abū Salamah b. ʿAbd al-Raḥman > ʿĀʾishah

"The Messenger of Allah did not fast in any month of the year more than he did in Shaban. He used to fast all of Shaban."  

النسائي:٢١٨٠ – أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ قَالَ أَنْبَأَنَا مُعَاذُ بْنُ هِشَامٍ قَالَ حَدَّثَنِي أَبِي عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ قَالَ حَدَّثَنِي أَبُو سَلَمَةَ بْنُ عَبْدِ الرَّحْمَنِ عَنْ عَائِشَةَ قَالَتْ

لَمْ يَكُنْ رَسُولُ اللَّهِ ﷺ فِي شَهْرٍ مِنَ السَّنَةِ أَكْثَرَ صِيَامًا مِنْهُ فِي شَعْبَانَ كَانَ يَصُومُ شَعْبَانَ كُلَّهُ  

nasai:2354 – ʿUbaydullāh b. Saʿd b. Ibrāhīm from my uncle from my father > Ibn Isḥāq > Muḥammad b. Ibrāhīm > Abū Salamah > ʿĀʾishah

"The Messenger of Allah did not fast any month more than Shaban; he used to fast (all of) it, or most of it."  

النسائي:٢٣٥٤ – أَخْبَرَنَا عُبَيْدُ اللَّهِ بْنُ سَعْدِ بْنِ إِبْرَاهِيمَ قَالَ حَدَّثَنَا عَمِّي قَالَ حَدَّثَنَا أَبِي عَنِ ابْنِ إِسْحَاقَ قَالَ حَدَّثَنِي مُحَمَّدُ بْنُ إِبْرَاهِيمَ عَنْ أَبِي سَلَمَةَ عَنْ عَائِشَةَ قَالَتْ

لَمْ يَكُنْ رَسُولُ اللَّهِ ﷺ لِشَهْرٍ أَكْثَرَ صِيَامًا مِنْهُ لِشَعْبَانَ كَانَ يَصُومُهُ أَوْ عَامَّتَهُ