Manners of Dialogue
Yahyaa ibn Khaalid (may Allah have mercy on him) said
لَا تُرَدَّ عَلَى أَحَدٍ جَوَاباً حَتَى تَفْهَمُ كَلَامَهُ
Do not respond to anyone until you have understood their words
فَإِنَّ ذَلِكَ يَصْرِ فُكَ عَنْ جَوَابِ كَلَامِهِ إِلَى غَيْرِهِ وَ يُؤَكِّدُ اَلجَهْلَ عَلَيْكَ
For that will cause you to respond to what they have not said, and thus confirm your own ignorance
وَ لَكِنِ اَفْهَمْ عَنْهُ، فَإِذَا فَهِمْتَهُ فَأَجِبْهُ، وَ لَا تَتَعَجَّلْ بِالجَوَابِ قَبْل َالِاسْتِفْهَامِ
Rather you must understand his speech properly. So when you understand him, then respond. And do not rush to answer before asking for clarity
وَ لَا تَسْتَحْيِ أَنْ تَسْتَفْهِمَ إِذَا لَمْ تَفْهَمْ، فَإِنَّ اَلجَوَابَ قَبْلَ اَلْفَهْمِ حُمْقٌ
And do not be shy to seek clarity when you do not understand. For verily answering before understanding is sheer idiocy
وَ إِذَا جَهِلْتَ قَبْلَ أَنْ تَسْأَلَ، فَيَبْدُو لَكَ
So if you do not know before asking, then ask! Then it will come to you
فَسُؤَالُكَ وَاسْتِفْهَامُكَ أَحْمَدُ بِكَ وَ خَيْرٌ لَكَ مِنَ السُّكُوتِ عَلَى الْعَيِّ.
Your questioning and seeking clarity is more praiseworthy and better for you then being silent and incapable of expressing yourself
(جَامِعُ ْبَيَانِ الْعِلْم وَ فَضْله#١٠٠١)
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May Allah ta'ala protect us from speaking without knowledge. Ameen