And O my people, give full measure and weight in justice and do not deprive the people of their due and do not commit abuse on the earth, spreading corruption.
First, he (Shu`ayb) prohibited them from cheating in business by decreasing the weights whenever they gave (products) to people.
He commanded them to give just measure and weight whether they were giving or receiving (in transactions). He also forbade them from causing mischief and corruption in the land. This was due to their practice of highway robbery along the roads. Abu Ja`far bin Jarir said,
بَقِيَّتُ اللَّهِ خَيْرٌ لَّكُمْ
(That which is left by Allah (after giving the rights of the people) is better for you,) "This means what you gain from your successful business dealings in which you have given just measure, is better for you than wrongfully taking the wealth of the people." Ibn Jarir said that this statement has been reported from Ibn `Abbas and I say it is similar to Allah's statement,
(Say: "Not equal are Khabith (all that is evil) and Tayyib (all that is good), even though the abundance of Khabith may please you.")5:100 Allah then says,
وَمَآ أَنَاْ عَلَيْكُمْ بِحَفِيظٍ
(And I am not a guardian over you.) This means a watcher over you people. In other words, "Do this for Allah and not to be seen by the people."
Ma'arif al-Qur'an
Mufti Muhammad Shafi
Obviously, the very prohibition of weighing and measuring short makes weighing and measuring in full necessary. But, to emphasize it further, Sayyidna Shu'aib علیہ السلام said:
And 0 my people, perfect the measure and the balance with justice and do not make the people short of their things, and do not go about the earth spreading disorder - 85.
Tazkirul Quran
Maulana Wahiduddin KhanOn ayahs 83–85
At first, Lot considered the young men who came to him as human beings. When he became anxious, thinking he was in danger, one of them clarified that they were angels and had been sent by God. In other words, this was not an affair of human beings but a divine matter. As the angels put it, ‘These people will not be able to harm you or us.’ When the townspeople persisted in advancing, one of the angels moved his arm, whereupon all of them became blind and turned back saying, ‘Run away! Lot’s guests appear to be great magicians.’ When God decides to destroy a community because of their arrogance, His will prevails throughout the entire area where they live. On such an occasion, all the living things settled there are affected by God’s retribution. However, by God’s special grace, those who had uttered the truth to these arrogant people, are saved. Conveying the message of God to man provides the best guarantee of avoiding being seized upon by God in this world as well as in the Hereafter. It is recorded in a tradition that, at heart, Lot’s wife was not on his side. But at the last moment, when Lot was leaving the town, saying that by morning God’s punishment would be meted out there, she joined Lot’s caravan. However, while Lot’s people were still on the way, the terrible noise of an earthquake and a storm could be heard from behind. Lot and his trustworthy companions did not pay any attention to what was happening in the rear. But Lot’s wife turned to look behind her. When she saw a dust-storm and heard the noise, she uttered the words, ‘Alas! my community!’ At that moment a stone hit her as a punishment and she dropped dead there and then. This incident has a lesson in it. One who is not really loyal to God and His Prophet will not be safeguarded by joining the caravan of righteous people under the influence of some factor other than the fear of God. His weakness will come to light somewhere or the other and he will be doomed.
