Narrated by Sayyiduna Abdullah bin Abbas, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: The best companion is four, the best detachment is of four hundred individuals, the best army is of four thousand, and an army of twelve thousand will not be defeated merely due to small numbers.
Hadith Referenceالفتح الربانی / كتاب الجهاد / 4947
Hadith Gradingمحدثین:صحیح
Hadith Takhrij«صحيح، قاله الالباني، أخرجه أبوداود: 2611، والترمذي:1555 ، (انظر مسند أحمد ترقيم الرسالة: 2682 ترقیم بيت الأفكار الدولية: 2682»
Brief Explanation
Benefits: … The purpose of this hadith is that, O companions, the minimum number of small and large armies should be at least this much; if it is more, then it will be even better.