It is narrated from Rashid bin Sa'd (may Allah have mercy on him) that the Messenger of Allah (peace and blessings be upon him) said: "The slaughtered animal of a Muslim is lawful, even if he did not mention (the name of Allah when slaughtering), as long as he did not do so deliberately; and the slave is likewise (his slaughter is also lawful)."
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :مرسل، إسناده ضعيف. » «انفرد به المصنف من هذا الطريق»