It is narrated from Sayyiduna Ammar bin Yasir (may Allah be pleased with him); (the narrator said:) I heard him say: "I have been commanded to fight those who break the pledge (Nakithin), those who adopt oppression and transgression (Qasitin), and those who pass out of the religion (Mariqin)."
Imam Abu Ya'la recorded this report in his Musnad; its chain contains narrators such as al-Khalil bin Murrah and al-Qasim bin Sulayman whom the hadith scholars have criticised, on account of which it is da'if (weak) in its chain, though its meaning is also reported in other narrations (athar).
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب الفتوح / 4399
Hadith Gradingمحدثین:إسناده ضعيف
Hadith Takhrij«حکم الحدیث المطالب العالیہ محققاً تنسیق د. سعد بن ناصر بن عبد العزيز الشَّثري- مکتبہ شاملہ :إسناده ضعيف » «أخرجه مسند البزار برقم: 604، وأخرجه المعجم الأوسط للطبراني برقم: 8428»