One verse

Srimad Bhagavatam 3.11.9

3.11.9

द्वादशार्धपलोन्मानं चतुर्भिश्चतुरङ्गुलै: । स्वर्णमाषै: कृतच्छिद्रं यावत्प्रस्थजलप्लुतम् ॥ ९ ॥

dvadasardha-palonmanam caturbhis catur-angulaih svarna-masaih krta-cchidram yavat prastha-jala-plutam

dvadasa-ardha
six
pala
of the scale of weight
unmanam
measuring pot
caturbhih
by weight of four
catuh-angulaih
four fingers by measure
svarna
of gold
masaih
of the weight
krta-chidram
making a hole
yavat
as long as
prastha
measuring one prastha
jala-plutam
filled by water.

The measuring pot for one nadika, or danda, can be prepared with a six-pala-weight (fourteen ounce) pot of copper, in which a hole is bored with a gold probe weighing four masa and measuring four fingers long. When the pot is placed on water, the time before the water overflows in the pot is called one danda.