It is narrated from Sayyiduna Jabir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) would not engage in fighting during the sacred months, except in the case when the enemy attacked him. If such a situation arose, he (peace and blessings be upon him) would wait until the sacred month had passed.
Hadith Referenceالفتح الربانی / أهم أحداث السنة الثانية للهجرة / 10686
Hadith Gradingمحدثین:أخرجه البخاري: 4473
Hadith Takhrij«أخرجه البخاري: 4473، ومسلم: 1814 ، (انظر مسند أحمد ترقيم الرسالة: 22953 ترقیم بيت الأفكار الدولية: 23341»