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:6459 – al-Ḥusayn b. Ḥurayth > Wakīʿ > Hishām > Qatādah > Saʿīd b. al-Musayyib > Saʿd b. ʿUbādah

"I said: 'O Messenger of Allah, what charity is best?' He said: 'Giving water to drink.'" (Using translation from Ibn Mājah 3684)  

الكبرى للنسائي:٦٤٥٩ – أَخْبَرَنَا الْحُسَيْنُ بْنُ حُرَيْثٍ عَنْ وَكِيعٍ عَنْ هِشَامٍ عَنْ قَتَادَةَ عَنْ سَعِيدِ بْنِ الْمُسَيِّبِ عَنْ سَعْدِ بْنِ عُبَادَةَ قَالَ

قُلْتُ يَا رَسُولَ اللهِ أَيُّ الصَّدَقَةِ أَفْضَلُ؟ قَالَ «سَقْيُ الْمَاءِ»  

See similar narrations below:

Collected by Nasāʾī, Ibn Mājah, Ibn Ḥibbān
nasai:3665 – Abū ʿAmmār al-Ḥusayn b. Ḥurayth > Wakīʿ > Hishām > Qatādah > Saʿīd b. al-Musayyab > Saʿd b. ʿUbādah

"I said: 'O Messenger of Allah, what kind of charity is best?' He said: 'Providing drinking water.'"  

النسائي:٣٦٦٥ – أَخْبَرَنَا أَبُو عَمَّارٍ الْحُسَيْنُ بْنُ حُرَيْثٍ عَنْ وَكِيعٍ عَنْ هِشَامٍ عَنْ قَتَادَةَ عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ عَنْ سَعْدِ بْنِ عُبَادَةَ قَالَ

قُلْتُ يَا رَسُولَ اللَّهِ أَىُّ الصَّدَقَةِ أَفْضَلُ قَالَ سَقْىُ الْمَاءِ  

ibnmajah:3684 – ʿAlī b. Muḥammad > Wakīʿ > Hishām Ṣāḥib al-Dastawāʾī > Qatādah > Saʿīd b. al-Musayyab > Saʿd b. ʿUbādah

"I said: 'O Messenger of Allah, what charity is best?' He said: 'Giving water to drink.'"  

ابن ماجة:٣٦٨٤ – حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ حَدَّثَنَا وَكِيعٌ عَنْ هِشَامٍ صَاحِبِ الدَّسْتَوَائِيِّ عَنْ قَتَادَةَ عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ عَنْ سَعْدِ بْنِ عُبَادَةَ قَالَ

قُلْتُ يَا رَسُولَ اللَّهِ أَىُّ الصَّدَقَةِ أَفْضَلُ قَالَ سَقْىُ الْمَاءِ  

ذِكْرُ الْبَيَانِ بِأَنَّ مِنْ أَفْضَلِ الصَّدَقَةِ لِلْمَرْءِ الْمُسْلِمِ سَقْيَ الْمَاءِ

ibnhibban:3348 – Muḥammad b. Isḥāq b. Khuzaymah > al-Ḥusayn b. Ḥurayth > Wakīʿ > Hishām > Qatādah > Saʿīd b. al-Musayyib > Saʿd b. ʿUbādah

"I said: 'O Messenger of Allah, what charity is best?' He said: 'Giving water to drink.'" (Using translation from Ibn Mājah 3684)  

ابن حبّان:٣٣٤٨ – أَخْبَرَنَا مُحَمَّدُ بْنُ إِسْحَاقَ بْنِ خُزَيْمَةَ قَالَ حَدَّثَنَا الْحُسَيْنُ بْنُ حُرَيْثٍ قَالَ حَدَّثَنَا وَكِيعٌ عَنْ هِشَامٍ عَنْ قَتَادَةَ عَنْ سَعِيدِ بْنِ الْمُسَيِّبِ عَنْ سَعْدِ بْنِ عُبَادَةَ قَالَ

قُلْتُ يَا رَسُولَ اللَّهِ أَيُّ الصَّدَقَةِ أَفْضَلُ قَالَ ﷺ «سَقْيُ الْمَاءِ»