The Prophet's (Sallallahu alaihe wasallam) Sleepless Night

Once the Prophet (Sallallaho alaihe wasallam) spent a sleepless night. He would turn from side to side and could not sleep. His wife asked him:
"0, Prophet of Allah! Why can you not sleep?" He responded:

"A date was lying about. I took it up and ate it, lest it should be wasted. Now I am troubled lest it might be from Sadaqah."

Most probably the date belonged to the Prophet himself, but because people sent him their 'Sadaqah' as well (for distribution), he could not sleep with the apprehension that it might be of Sadaqah. This is the last word in scruples from the master himself, that he could not sleep because of a suspicion in his mind. How would it go with those who claim themselves to be the slaves of that very master but indulge in usury, corruption, theft, plunder and every other type of 'haraam' business without the least scruple.