It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Prophet (peace and blessings of Allah be upon him) forbade making nabidh in gourds and in varnished jars.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 5156
Hadith Gradingحکم دارالسلام:إسناده صحيح ، م : 1997 .