Ibn al-Musayyib (may Allah have mercy on him) said: The people of Thaqif brought nabidh to Sayyiduna Umar (may Allah be pleased with him); it was strong, so he mixed water into it two or three times and thinned it.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الأشربة والحد فيها / 17448