This unique parable dates back to the era of Sayyiduna Umar Farooq رَضِىَ اللّٰهُ عَـنْهُ, the second caliph of the Muslim Ummah. He would usually patrol the streets of Madinah at night. In this way, he would keep himself up to date with what was happening in the Muslim society.
Once, Sayyiduna Umar Farooq رَضِىَ اللّٰهُ عَـنْهُ was on patrol at night, he heard the words: ‘O my daughter! Mix some water in milk’. The daughter humbly responded: ‘Mom! Do not you know that the caliph of Muslims has ordered not to mix water in milk?’ The mother said: ‘It is totally dark everywhere and the caliph is not here either to see what we are doing, nor will he be able to know about it, so go and mix water in milk.
Responding to the mother, daughter said: ‘Though the caliph is not here to check us but my Rab, Allah Almighty is watching me, so I will never do this.’
Dear children! Whether someone monitors our activities or not, Allah Almighty is always watching His bondsmen. Out of this Divine fear, the honest girl did not indulge in the wrong act of mixing water in milk.
Do you know the reward she was blessed with in the world for her honesty? Ameer-ul-Mumineen, Sayyiduna Umar Farooq رَضِىَ اللّٰهُ عَـنْهُ got his son, Sayyiduna Aasim رَضِىَ اللّٰهُ عَـنْهُ, married to this honest and pious girl. (‘Uyoon-ul-Hikayaat, pp. 28-29)