Authentic
graded by Al-Albani
Mishkat al-Masabih 3939
Narrator:Jābir ibn ‘Abdullāh
وَعَنْ جَابِرٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم: «الْحَرْب خدعة»
Jabir reported God's Messenger as saying, “War is deception.” (Bukhari and Muslim.)
Cited in Mishkat al-Masabih (No. 3939).