Ubaydullah bin Umar (may Allah have mercy on him) said that Sayyiduna Umar (may Allah be pleased with him) broke the strength of the nabidh with water, and it had become strong because of its sweetness.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأشربة والحد فيها / 17451