Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
quran:26:181

Give full measure and do not be of those who cause loss.  

Give full measure and do not be of those who give short measure,
القرآن:٢٦:١٨١

أَوْفُوا الْكَيْلَ وَلَا تَكُونُوا مِنَ الْمُخْسِرِينَ  

{أوْفوا الكيل} أتموه {ولا تكونوا من المخسرين} الناقصين.