It is narrated from Sayyiduna Abu Musa al-Ash'ari (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "I have been given the keys to the opening of speech and its concluding words (that is, comprehensiveness of speech, eloquence and rhetoric)." We said: "O Messenger of Allah! Teach us some of the knowledge that Allah, the Mighty and Majestic, has taught you." So he (peace and blessings be upon him) taught us (important matters of the religion).
The chain of this hadith contains Abd al-Rahman bin Ishaq al-Kufi, who is a weak narrator; however, the mention of the Prophet (peace and blessings be upon him) being given jawami' al-kalim (concise comprehensive speech) is found in authentic hadith of Sahih al-Bukhari and Muslim.
Hadith Referenceالمطالب العالية بزوائد المسانيد الثمانية / كتاب المناقب / 3847
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 أبي يعلى برقم: 7238، وأخرجه المطالب العالية لابن حجر برقم: 521، وأخرجه مصنف ابن أبي شيبة برقم: 3015»