Sayyiduna Anas bin Malik (may Allah be pleased with him) narrates: When the Prophet Muhammad (peace and blessings be upon him) went for the Umrah of Qada (i.e., entered Makkah), Sayyiduna Abdullah bin Rawahah (may Allah be pleased with him) was holding the stirrup of his mount and reciting these verses: "Leave the children of the disbelievers on their way, and in the Qur'an this command has been revealed: the best killing is that which is done in His path."
Hadith Referenceصحیح ابن حبان / كتاب السير / 4521
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «مختصر الشمائل» (رقم 210).فضيلة الشيخ العلّامة شُعيب الأرناؤوطحديث صحيح