The Book on Jihad
كتاب الجهاد عن رسول الله صلى الله عليه وسلم
Read the English translation first, with the original Arabic directly underneath.
What Has Been Related About The Permission To Lie And Be Deceitful In War
Narrated 'Amr bin Shu'aib:
From his father, from his grandfather that the Messenger of Allah (ﷺ) said: "The (lone) rider is a Shaitan, and two raiders are two Shaitan. Three is a travelling party. [Abu 'Eisa said:] The Hadith of Ibn 'Umar (no, 1673) is Hasan Sahih. We do not know of it except from this route ; as a narration of 'Asim. And he is Ibn Muhammad bin Zaid bin 'Abdullah bin 'Umar. Muhammad said: "He is trustworthy, truthful. And 'Asim bin 'Umar Al-'Umari is weak in Hadith, I do not report anything from him." The Hadith of 'Abdullah bin 'Amr (no. 1674) is better.
الرَّاكِبُ شَيْطَانٌ وَالرَّاكِبَانِ شَيْطَانَانِ وَالثَّلاَثَةُ رَكْبٌ