"I heard the Messenger of Allah (ﷺ) say: 'Measure your food, may you be blessed therein."'
Sunan Ibn Majah Book 12, Hadith 95
← Previous Hadith "I used to sell dates in the marketplace, and I would say: 'This was such and such an amount (when I bought it).' I Would give the purchaser a specific amount of dates according to the way it had been measured for me, and take my profit. Then I began to have some doubts about that, so I asked the Messenger of Allah (ﷺ), and he said: ‘When you name the amount, measure it in front of the purchaser."'

Sunan Ibn Majah Book 12, Hadith 94 Next Hadith → "Measure your food, may you be blessed therein."

Sunan Ibn Majah Book 12, Hadith 96