Hasan on Debate: Scholars do argue with fools or heretics

Al-Ajurri reported: Al-Hasan al-Basri, may Allah have mercy on him, said, “I have never seen a jurist indulge argumentation. The believer does not debate with the foolish, not does he argue. He spreads the wisdom of Allah. If it is accepted, he praises Allah. If it is rejected, he praises Allah.”

Source: Akhlāq al-‘Ulamā’ lil-Ajurrī 1/58

عن الآجري وَعَنِ الْحَسَنِ البصري رحمه الله قَالَ مَا رَأَيْنَا فَقِيهًا يُمَارِي الْمُؤْمِنُ يُدَارِي وَلَا يُمَارِي يَنْشُرُ حِكْمَةَ اللَّهِ فَإِنْ قُبِلَتْ حَمِدَ اللَّهَ وَإِنْ رُدَّتْ حَمِدَ اللَّهَ

1/58 أخلاق العلماء للآجري