عَنْ أَبِي رَاشِدٍ قَالَ: خَطَبَنَا عَمَّارُ بْنُ يَاسِرٍ فَتَجَوَّزَ فِي خُطْبَتِهِ، فَقَالَ رَجُلٌ مِنْ قُرَيْشٍ لَقَدْ قُلْتَ قَوْلًا شِفَاءً فَلَوْ أَنَّكَ أَطَلْتَ، فَقَالَ إِنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ نَهَى أَنْ نُطِيلَ الْخُطْبَةَ
Abu Rashid says: Sayyiduna Ammar bin Yasir (may Allah be pleased with him) gave us a brief sermon. A Qurayshi man said to him: You have said (heart-affecting) very good things, but if you had made this address a bit longer (it would have been better). He said: Indeed, the Messenger of Allah (peace and blessings be upon him) forbade making the sermon lengthy.