
Let us go back in History and see a couple of Conspiracy's and how to get away with murder!
In a nutshell, 2 famous stories
First we have the story of Prophet Yusuf عليه السلام and the conspiracy to murder him and get away with it.
Quote:
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The brothers were excited that they could now get rid of Yusuf عليه السلام for after this they could stand a better chance of receiving their father's affection. On leaving home, they went directly to the well, as they had planned, on the pretext of drinking water. One of them put his arms around Yusuf عليه السلام and held him tightly. Startled by this unusual behavior, Yusuf عليه السلام struggled to free himself. More brothers rushed to hold him. One of them removed his shirt. Some more joined in to lift Yusuf (a.s) up and cast him into the deep well. Yusuf's عليه السلام piteous pleas made no difference to their cruel hearts.
Then they killed a sheep and soaked Yusuf's عليه السلام shirt in its blood. One brother said that they should swear to keep their deed a close secret. All of them took the oath.

The brothers were excited that they could now get rid of Yusuf عليه السلام for after this they could stand a better chance of receiving their father's affection. On leaving home, they went directly to the well, as they had planned, on the pretext of drinking water. One of them put his arms around Yusuf عليه السلام and held him tightly. Startled by this unusual behavior, Yusuf عليه السلام struggled to free himself. More brothers rushed to hold him. One of them removed his shirt. Some more joined in to lift Yusuf (a.s) up and cast him into the deep well. Yusuf's عليه السلام piteous pleas made no difference to their cruel hearts.
Then they killed a sheep and soaked Yusuf's عليه السلام shirt in its blood. One brother said that they should swear to keep their deed a close secret. All of them took the oath.
We all know the authenticity of this conspiracy and the rest of the story.
Now let's move on to the second plot to murder.
To kill Muhammad

Quote:
The Meccans, fearing the consequence of this new alliance, began to think seriously of preventing Muhammad
from escaping to Yathrib. They met in all haste. After several milder expedients had been rejected, they decided that he
should be killed. They agreed that one man should be chosen out of every tribe and that each man should strike a blow at him with his sword so that responsibility of the guilt would rest equally on all tribes. The Bani Hashim, Muhammad's own tribe
, were much inferior and therefore would not be able to revenge their kinsman's death.
A number of noble youths were selected for the bloody deed. As the night advanced, the assassins posted themselves round the Prophet's dwelling
. They watched all night long, waiting to murder Muhammad
when he should leave his house at the early dawn. By some means the Prophet had been warned of the danger, and he directed 'Ali رضي الله عنه to lie down in his place and wrap himself up in his green cloak, which he did. The Prophet miraculously escaped, unperceived by the conspirators who had already assembled at the Prophet's door
. These, in the meantime, looking through a crevice and seeing Ali رضي الله عنه, whom they mistook for Muhammad
himself, asleep, continued watching there until morning. When 'Ali رضي الله عنه arose, they found themselves deceived. The fury of the Quraish was now unbounded. The news that the would-be assassins had returned unsuccessful and that Muhammad
had escaped aroused their whole energy. A price of a hundred camels was set upon Muhammad's head 



A number of noble youths were selected for the bloody deed. As the night advanced, the assassins posted themselves round the Prophet's dwelling






Lying In Islam
Lying is the complete opposite of truth. So, anything that is untrue and deliberately intended to mislead another person is a lie. A lie, therefore, can be anything spoken or written that is totally or partially baseless, unreal, made-up, distorted or exaggerated; for example, if someone were to deliberately state that a five foot pole was a ten foot pole, then this would be a lie.
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The Prophet Muhammad

“It is enough of a lie for someone to narrate all that he hears”.