It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Indeed Allah, the Mighty and Majestic, made this city (Makkah) sacred on the day He created the heavens and the earth, and He fashioned it (with its sanctity) when He fashioned the sun and the moon, and what lies opposite it of the sky is also sacred. It was never made lawful for anyone before me, and it was made lawful for me for one hour of a day, then it returned to its former state." Then it was said to him (peace and blessings be upon him): "This is Khalid bin al-Walid killing (people)." So he (peace and blessings be upon him) said to a man: "O so-and-so, get up, go to Khalid bin al-Walid and tell him to withhold his hand from killing." The man went to him and said: "The Prophet (peace and blessings be upon him) says: 'Kill whomever you can overpower.'" So he killed seventy people. Then the man came to the Prophet (peace and blessings be upon him) and mentioned that to him. He (peace and blessings be upon him) sent for Khalid bin al-Walid and said: "Did I not forbid you from killing?" He said: "So-and-so came to me and ordered me to kill whomever I could overpower." Then he (peace and blessings be upon him) sent for that man and said: "Did I not order you to tell Khalid not to kill anyone?" He said: "You wanted one thing and Allah wanted another, and Allah's decree prevails over your wish; I could do nothing other than what happened." So the Prophet of Allah (peace and blessings be upon him) fell silent and gave him no reply.
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Ata' bin al-Sa'ib except Shu'ayb bin Safwan."
Hadith Referenceالمعجم الأوسط / باب العين / 3866
Hadith Gradingمحدثین:إسناده ضعيف، فيه عطاء بن السائب وقد اختلط
Hadith Takhrij«قال الهيثمي: وفيه عطاء بن السائب وقد اختلط «مجمع الزوائد ومنبع الفوائد، ج 3، ص 284»» «أخرجه الطبراني فى «الكبير» برقم: 11003»