Abu Qatadah (May Allah be pleased with him) reported:
Messenger of Allah ﷺ said, "He who serves others with drinking water should be the last to drink himself."

[At-Tirmidhi].

عن أبى قتادة رضى الله عنه عن النبي ﷺ قال: " ساقي القوم آخرهم شرباً"