Abd al-Jabbar, the son of Sayyiduna Wa'il bin Hujr (may Allah be pleased with him), narrates through his family from his father that a bucket of water was brought to the Prophet (peace and blessings be upon him). He drank from it, then spat a mouthful into the bucket, then poured it into the well; or he drank from the bucket, then spat a mouthful into the well. And a fragrance like that of musk spread from it.
Hadith Referenceالمعجم الكبير للطبراني / باب الواو / 18339