Musannaf Ibn Abi Shaybah 35920 — Scheming and deception in war

Abdullah bin Buraydah said that when Sayyiduna Amr bin al-As (may Allah be pleased with him) forbade the people to light a fire, Sayyiduna Umar (may Allah be pleased with him) said to Sayyiduna Abu Bakr (may Allah be pleased with him): "Do you see this man who has kept the people from what benefits them?" Sayyiduna Abu Bakr (may Allah be pleased with him) said: "Leave him be. It was because of his skill in the stratagems of war that the Messenger of Allah (peace and blessings be upon him) made him our commander."