Hadith Q2946

إِذِ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَدْ أَعْلَمَ أَنَّهُ عَمَلٌ صَالِحٌ، وَأَعْلَمَ أَنَّ لَوْلَا أَنْ يُغْلَبَ الْمُسْتَقِي مِنْهَا عَلَى الِاسْتِقَاءِ لَنَزَعَ مَعَهُمْ‏.‏
Because the Noble Prophet (peace be upon him) has stated that this is a righteous deed. And he also stated that if there was no fear of causing hardship to those who provide Zamzam, I too would have drawn water from the well along with them.
Hadith Reference صحيح ابن خزيمه / جماع أبواب ذكر أفعال اختلف الناس فى إباحته للمحرم، نصت سنة النبى صلى الله عليه وسلم أو دلت على إباحتها / Q2946