Hazrat Umar (may Allah be pleased with him) wrote to the commanders of the armies: If any Muslim gestures to an enemy’s man, saying,“If you surrender, I will not kill you,”and the enemy descends and surrenders, believing this to be a guarantee of safety, then he will be granted protection.

It is narrated from Hazrat Sulaiman bin Buraidah (may Allah be pleased with him) that when the Holy Prophet (peace and blessings be upon him) would dispatch an army, he would advise its commander: When you lay siege to a fort and intend to grant them protection in the name of Allah and His Messenger __QUR_N__, do not grant them protection in the name of Allah and His Messenger __QUR_N__, but rather grant them protection in your own name and the name of your forefathers, for it is easier for you to break your own guarantee and that of your forefathers than to break the guarantee of Allah and His Messenger. Hazrat Sufyan (may Allah be pleased with him) says that Hazrat Nu'man bin Muqarrin al-Muzani also narrates in the same manner from the Noble Prophet (peace and blessings be upon him).

35643 - Sufyan said: Alqama said: I narrated the hadith of Sulayman ibn Buraydah to Muqatil ibn Hayyan, and Muqatil ibn Hayyan said: Muslim ibn (Haysam) al-Abdi narrated to us from al-Nu'man ibn al-Muqarrin al-Muzani from the Prophet صلی اللہ علیہ وسلم with the like of it (2).

Hazrat Abu Wa'il (may Allah be pleased with him) narrates that we were in Khanqin when a noble letter from Hazrat Umar (may Allah be pleased with him) reached us, in which it was written: When you lay siege to a fort and then wish to grant them safety (by offering them amnesty) on Allah's command, do not do so, because you do not know whether you will find Allah's command in this matter or not. Rather, grant them safety and amnesty on your own command, and then afterwards, deal with them as you wish.

It is narrated from Hazrat Saleem that there was a peace treaty between Hazrat Muawiyah and the Romans. Hazrat Muawiyah (may Allah be pleased with him) advanced towards their territory so that when the term of the treaty ended, he could launch a sudden attack on them. Suddenly, from one side of the army, a person came saying, "Fulfill the covenant, do not betray! Fulfill the agreement, do not deceive!" That person was Hazrat Amr bin Abasah. He said, "I heard the Messenger of Allah صلی اللہ علیہ وسلم say: Whoever has a treaty with a people should neither tie nor untie its knot until its appointed term has passed, or he should throw back the treaty to them on equal terms."

It is narrated from Hazrat Ibn Umar (may Allah be pleased with them both) that the Holy Prophet (peace and blessings be upon him) said: When Allah Almighty will gather the first and the last on the Day of Resurrection, a flag will be raised for every deceiver, and it will be announced: This is the deception of so-and-so, son of so-and-so.

It is narrated from Hazrat Ibn Umar (may Allah be pleased with them both) that the Noble Prophet (peace and blessings be upon him) said: Every deceiver will have a flag on the Day of Resurrection by which he will be recognized.

It is narrated from Hazrat Abdullah that the Holy Prophet (peace and blessings be upon him) said: Every deceiver will have a flag on the Day of Resurrection by which he will be recognized, and it will be said, "This is the deception of so-and-so, son of so-and-so."

It is narrated in a similar manner from Hazrat Abdullah (may Allah be pleased with him).

It is narrated from Hazrat Abu Saeed (may Allah be pleased with him) that the Holy Prophet (peace and blessings be upon him) said: Every deceiver (one who breaks a covenant) will have a flag on the Day of Resurrection, and his deceit will be beneath his buttocks.