´It was narrated that Safwan bin ‘Assil said:` “The Messenger of Allah (ﷺ) sent us in a military detachment and said: ‘Go in the Name of Allah, and in the cause of Allah. Fight those who disbelieve in Allah. Do not mutilate, do not be treacherous, do not steal from the spoils of war, and do not kill children.’”
Hadith Referenceسنن ابن ماجه / كتاب الجهاد / 2857
Hadith Gradingالألبانی:حسن صحيح | زبیر علی زئی:إسناده حسن
Hadith Takhrij«تفرد بہ ابن ماجہ ، ( تحفة الأشراف : 4953 ، ومصباح الزجاجة : 1011 ) ، وقد أخرجہ : مسند احمد ( 4/240 ) ( حسن صحیح ) »
Brief Explanation
1؎: In another narration, there is an addition: and do not kill a woman, nor an extremely old man (sheikh fani), that is, such an elderly person who is no longer capable of fighting.