Bulugh al-Maram, Book 4, Hadith 626 (English)

'Amro bin Shu'aib narrated on the authority of his father, who reported on the authority of his grandfather (RAA) that the Messenger of Allah said: “The Zakah of the Muslims should be collected by their water trough.” Related by Ahmad.

وَعَنْ عَمْرِو بْنِ شُعَيْبٍ, عَنْ أَبِيهِ, عَنْ جَدِّهِ قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ تُؤْخَذُ صَدَقَاتُ اَلْمُسْلِمِينَ عَلَى مِيَاهِهِمْ } رَوَاهُ أَحْمَد ُ 1‏.‏ ‏1 ‏- حسن.‏ رواه أحمد ( 6730 )‏.‏

sunnah.com

also referenced under: Book 4, Hadith 601 (In-Book)

Abu Dawud also has the narration, “Their Zakah should only be collected by their dwellings.”

وَلِأَبِي دَاوُدَ: { وَلَا تُؤْخَذُ صَدَقَاتُهُمْ إِلَّا فِي دُورِهِمْ } 1‏.‏ ‏1 ‏- حسن.‏ رواه أبو داود ( 1591 )‏، وأوله: "لا جلب، ولا جنب،، ولا تؤخذ.‏.‏.‏.‏.‏.‏ ".‏

sunnah.com

also referenced under: Book 4, Hadith 602 (In-Book)